Two Stroke Motocross

Two Stroke Motocross Forum => Technical => Topic started by: luthier269 on December 08, 2009, 07:58:21 PM

Title: What two stroke pre mix is best?
Post by: luthier269 on December 08, 2009, 07:58:21 PM
I would like your opinon. I've been using Pj1 gold fire but its getting hard to find around here. I'm looking to switch to an oil thats easy to find here. The main choices are Yamalube,red line, All the Maxima oils,Belray ,Motul,golden spetro. Thanks
Title: Re: What two stroke pre mix is best?
Post by: JohnN on December 08, 2009, 08:08:03 PM
Choosing a two-stroke oil is a very personal decision!!!  ;D

Personally I have used Golden Spectro, Yamalube, Maxima and Bel Ray. I think any one of them would serve you well. The idea is not to mix them, sometimes they don't play well together.

When I used to ride every week, I used to buy two-stroke oil by the case. It was cheaper that way, I didn't have to go anyplace to pick it up and it was never out of stock at my local dealer.
Title: Re: What two stroke pre mix is best?
Post by: bigbore on December 08, 2009, 08:15:10 PM
Nothing beats the bean. ;D
Title: Re: What two stroke pre mix is best?
Post by: Recovered on December 08, 2009, 08:34:06 PM
I agree with the General. There are only 2 considerations I will point out here.

1. It's 2010 and you SHOULD be using a synthetic.

2. Pick a brand and stick with it (jet accordingly).

3. Pick a pre-mix ratio and stick with it.

You are correct...I am found wanting in mathematical skills :-*
Title: Re: What two stroke pre mix is best?
Post by: metal_miracle on December 09, 2009, 07:01:14 AM
read your owners manual

my tm85  needs 32:1

but my on ktm85 its  recommended 40:1
Title: Re: What two stroke pre mix is best?
Post by: Recovered on December 09, 2009, 08:30:52 AM
There are reasons for this. If you look close, you will see that most owners manuals also reccomend a specific brand of oil. The oil manufacturer PAYS for this. It's advertising. Also, think about this...each oil manufacturer has its own idea of how to lubricate and what to use to achieve that purpose. To that end, every manufacturers oil will have a different viscosity when mixed with fuel. So.........when you don't use the oil specified in the owners manual, you are literally changing the specific gravity of the fluid (fuel). Your particular bike was jetted from the factory for the oil and pre-mix ratio specified in the manual. Any deviation from this will require a jet change.

See my above post.
Title: Re: What two stroke pre mix is best?
Post by: compmoto on December 10, 2009, 07:52:10 PM
my dinosaurs run 32:1 Amsoil or Maxima,both are great oils,and smell good too! ... I mix with pump premium, for the dirtbikes, and the RZs/RDs NEVER run less than 100 oct...I learned that lesson,the only way I know how:the hard way.
Title: Re: What two stroke pre mix is best?
Post by: Hondacrrider on December 12, 2009, 09:41:15 PM
Hey, there is now strawberry scented two stroke oil out there, good buy?
Title: Re: What two stroke pre mix is best?
Post by: westsiderippa on December 15, 2009, 05:38:51 PM
if were giving suggestions, well then, i run 32:1 rock oil syn 2. i have ran it in my last 4 cr250's and have no complaints. its pricey and when mixing it with leaded 110. its very pricey but my bikes always run strong.
Title: Re: What two stroke pre mix is best?
Post by: ford832 on December 15, 2009, 05:45:25 PM
The strawberry smelling stuff is Ipone.It's good oil and smells good too(and made by Motul).I use Motul 800 and have no issues-but it lacks the strawberry smell. :(
Title: Re: What two stroke pre mix is best?
Post by: theeternaltwostroker-mr.h on December 15, 2009, 06:54:50 PM
I fully agree modern synthetics have a lot of plusses...however with ANY "performance" two stroke oil price is not one of them!

You would surprise yourself trying the cheapest outboard boat oil you can find that's certified TC -w3 or whatever that is...

Walmart supertech is less than 10 a gallon, and will blow your mind in performance when mixed at appropriate ratios (around 30:1 for most people works great)

Penzoil's oil is great too...along with a lot of other "budget" outboard oils.

As far as mx specific oils, pretty much can't go wrong if you mix at the right ratio for your application, some of the amsoil products burn incredibly clean though I have had some odd issues with it in other areas.
Castor 927 is IMHO the best all out race lubricant but I suggest frequent tear downs with it for carbon.
Title: Re: What two stroke pre mix is best?
Post by: KXwestYZ on January 05, 2010, 01:52:54 PM
Not sure if you can get it in the states but here in the UK most people use Putolene MX5 fully synthetic, its really good - I tried MX7 which is a bit thicker but found my plugs got to fouled to quickly so MX5 works the best
Title: Re: What two stroke pre mix is best?
Post by: Cable Stretcher on January 05, 2010, 04:22:35 PM
if there is a RC valve I would stay away from any castor oil!
Title: Re: What two stroke pre mix is best?
Post by: DESERTFOX19 on January 07, 2010, 07:23:49 PM
 I use Maxima 927.
Title: Re: What two stroke pre mix is best?
Post by: ford832 on January 11, 2010, 04:31:09 PM
Motul 800 always.The best I've found to date for protection and engine cleanliness at tear down.
Title: Re: What two stroke pre mix is best?
Post by: Recovered on January 11, 2010, 05:13:25 PM
Motul 800 always.The best I've found to date for protection and engine cleanliness at tear down.

That is 100% synthetic right??
Title: Re: What two stroke pre mix is best?
Post by: ford832 on January 11, 2010, 05:38:18 PM
Yep.Burns clean,pv always clean,piston clean with very little scuff after many hours,no crank bearing failures.My favorite to date.
Title: Re: What two stroke pre mix is best?
Post by: admiral on January 12, 2010, 05:36:22 PM
I would like your opinon. I've been using Pj1 gold fire but its getting hard to find around here. I'm looking to switch to an oil thats easy to find here. The main choices are Yamalube,red line, All the Maxima oils,Belray ,Motul,golden spetro. Thanks
i find Yamalube, Belray MC-1, and Golden Spectro to be diry with too much carbon build up. as stated the Motul 800 is very clean and so is the Redline. all the oils will protect your engine some just burn cleaner.
Title: Re: What two stroke pre mix is best?
Post by: Helmut Clasen on January 22, 2010, 01:13:31 PM
OPTI-2  100-1 on all my modern and Vintage 2 strokers.
OPTI-4 in all my modern KTMs 4 strokers.

(its the same oil almost every chainsaw pro is using.)
Maico was using it under there own Name MAICO RACING oil 100-1.

The German Munich oil company was sold several years ago to Castrol.
But a sister company bought the license early enough and is making the oil in the USA.
Blaine , Washington
www.opti2-4.com (http://www.opti2-4.com)
Title: Re: What two stroke pre mix is best?
Post by: admiral on January 22, 2010, 04:38:12 PM
[quote

(its the same oil almost every chainsaw pro is using.)

[/quote]
chain saw pro? how do you become a professional chain saw-er?
Title: Re: What two stroke pre mix is best?
Post by: ford832 on January 22, 2010, 07:07:12 PM
Easy,you run a chainsaw for a living-like totalnz for instance(and it's wayyyyyy harder than you may think)-he just doesn't run much of chainsaw-that's all. ;DSorry,I couldn't help it.I run stihl/husky/jred in mine which I believe is made by castrol though I do use stihl bio for bar oil-but don't tell totalnz :-X
Title: Re: What two stroke pre mix is best?
Post by: TotalNZ on January 22, 2010, 10:24:43 PM
Easy,you run a chainsaw for a living-like totalnz for instance(and it's wayyyyyy harder than you may think)-he just doesn't run much of chainsaw-that's all. ;DSorry,I couldn't help it.I run stihl/husky/jred in mine which I believe is made by castrol though I do use stihl bio for bar oil-but don't tell totalnz :-X
ha ha your just sick of your new jred bogging down all the time. Yeah i run husqvarna low smoke cause thats what my work uses. top marks for using the bio baroil, it's very environmentally responsible of you.
And yes i'd definitely consider myself a chain saw pro ie professional chainsaw operator.
Title: Re: What two stroke pre mix is best?
Post by: Helmut Clasen on January 23, 2010, 05:48:35 AM
[quote

(its the same oil almost every chainsaw pro is using.)

chain saw pro? how do you become a professional chain saw-er?
[/quote

We Canadians say Chainsawpro for the timber guys who are out there and,...you know .... :)
In the early 70s when SACHS-Hercules was importet into Canada,as a sideline they importet SACHS DOLMAR chainsaws.
To brake into our market the saws where given to the timber pros for very little money.
Because the winter time was quiet time for the motorcycle business,Horst Kempter,Prez of SACHS Canada,ask me to visit the timber camps in the east to see how our saws worked.
A team of two would be working up to 8 hours a day,walking on frozen ground where in the summer would be swamp.Biggest complaint weas,inhaling the fumes of the exhaus coming out in frond of the saw,inhaling very cold winter air,getting sometimes dissy,....
So we started experimention with a flexible exhaust pipe fsatened to a harness on the shoulder.
But was not practical to disconnect when the saw was running empty and was handed over to the helper for filling and sharpening.
So we wend with one of our Pro saws to the then still existing PIONEER chainsaw company in Peterborough.They had a kind of a dyno test bunker to set up there saws for the world champion ship.
Here we mounted our saw and fed her with our SACHS saw oil(yes you get it) OPTI 2 oil.
Over a period of hours we leant the mix out from starting with a 100-1 and decreasing it steadyly until we had reached 300-1.With that mix we run the saw 10 hours non stop.After that we took the saw apart and where amased that absolutely no wear was to be found.We could not convince the timber people to use 300-1 but got them to use at least the 100-1.

Interesting also the story how the oil was original developed. ;D

Title: Re: What two stroke pre mix is best?
Post by: admiral on January 23, 2010, 06:31:04 AM
ok, a lumberjack. i get it. since i started using Husky saws in the the '80's (266 & 181 models)  i will call myself a chain saw amateur.
Title: Re: What two stroke pre mix is best?
Post by: Helmut Clasen on January 23, 2010, 06:41:37 AM
ok, a lumberjack. i get it. since i started using Husky saws in the the '80's (266 & 181 models)  i will call myself a chain saw amateur.


NEW NAME: ADAM. ;D


Admiral-Amateur..... :) :) :)
Title: Re: What two stroke pre mix is best?
Post by: Chokey on January 24, 2010, 07:44:42 PM
I wrote this up a few years ago on another forum, this seems like an appropriate thread for it:

Pre-mix Oils

This isnā??t exactly a scientifically conducted test, itā??s just my opinions and observations about several different oils that I have tried over the last few years, on both my KX250 and my KDX250. All of these results are obtained running a 26:1 ratio, with jetting as close to perfect as I am capable of. Each oil was used through the life of at least one top-end. I only use Wiseco pistons and rings. Remember, these are just my observations and opinions, I'm not trying to to bash anybody's choice of oil, so don't get your panties in a wad...

Golden Spectro: This oil did a good job of protecting the piston and cylinder. The piston was a little shiny on the intake side, but wear was within specs, and the piston and cylinder otherwise looked OK. There was a good coating of residual oil in both the top and bottom of the engine. It is a dirty-burning oil, however. It leaves a lot of carbon deposits on the piston crown and head, and really gums up the ring grooves and the power valves. And this oil spooges! No matter how sharp you try to jet, the spooge simply canā??t be completely eliminated. I wouldnā??t run this oil again unless I had no alternative, itā??s just too dirty. As a side note that may or may not be related to the oil, this is the only pre-mix that I have ever had an engine failure while using, with the thrust-bearings on the KDX250 crank pin seizing. It was probably just a fluke, and I canā??t pin it down to lubrication failure, but itā??s always stuck in my head.

Maxima Super-M: This oil didnā??t protect the piston as well as I would like to see in my engines. The piston was noticably shiny and scuffed on both the intake and exhaust sides, and the top-end was almost dry upon tear-down, although the bottom-end seemed to be well lubed. The ring grooves were reasonably clean, but the piston crown and head had significant deposits, as well as the powervalves, although not as bad as the Golden Spectro. Another oil that I just canā??t recommend, it just doesnā??t seem to leave the engine well lubricated or clean. I also felt this oil left an off-color on the plugs, making jetting a little more difficult.

Maxima Castor 927: Very slight scuffing on the intake side of the piston, but over-all everything looked good. The ring grooves had slight deposits, and the piston crown and head had slight build-up that was well within reason. The powervalves were gummy, but not to the point of seizing or failing, again within reason for a non-synthetic oil, and excellent for a castor-based oil. Both the top and bottom-end of the engine were very oily and well-lubed with plenty of residual build-up. And the smell of this oil is wonderfully sweet, better than any other oil Iā??ve used. I liked using this oil just for the smell! Overall a good oil with no real bad points.

Redline: This was a strange oil. The piston and cylinder looked good, with minor shiny spots but no scuffing, and everything was reasonably clean and well-lubed. But this oil actually left surface rust on the crank wheels, and tarnished the carb brass. It also had a tendency to gum up the carb jets for some reason. How a metal surface can be both oily and have rust on it is beyond me, but clearly this oil lacks any proper corrosion-inhibitors, and it must have very high levels of esters that give it a strong hygroscopic effect. I would never use it again, nor could I recommend it.

Mobil 1 MX2T: The piston and cylinder looked great with this oil. No noticable shiny spots or scuffing on the piston at all. The top and bottom of the engine were well lubed with plenty of residual build-up, and even the powervalves were oily and lubed. No other oil that Iā??ve used compares to the cleanliness of this oil. The piston, head, and powervalves were nearly spotless, the valves didnā??t even really need cleaning. If I were a serious racer, this would be my oil of choice. The only reason I no longer use it is the awful, acrid-smelling exhaust it produces. Since I just play-ride with my buddies, they all complained srongly about the smell when they were riding behind me, and my brother-in-law went so far as to tell me he would ban me from riding with him if I didnā??t change oils. This oil used to be clear, with no dyes whatsoever added to it, creating potential problems with not being able to tell if the gas is mixed or not. But it has since been re-named Racing 2T, and has been dyed red. The smell is still there, though...

Bell Ray H1R: This oil was similar to the Super-M in every way. It left the piston shiney and scuffed-looking, although the top-end wasn't left as dry looking. Deposits were less than with the Super-M, but still heavy enough on the valves to be a problem for riders that run their top-ends for extended periods of time. I could see this oil gumming up the valves enough to cause them to stop functioning. An acceptable but un-exceptional oil.

Yamalube 2R: For a dino-based semi-synthetic oil, this is an exceptional product that performs as well as any full-synthetic out there. The piston and cylinder always look good, with no significant shiny spots or scuffing. The ring grooves, piston crown, and combustion chamber were very clean, with only a light circular carbon pattern on the crown and head. The valves are almost as clean as with MX2T, although not clean enough to not need removing and cleaning. The top and bottom of the engine are always well lubed with plenty of residual oil, even on the powervalves. This is my oil of choice, and I whole-heartedly recommend it to everyone, racer and casual rider alike.

These are only a few of the oils on the market. There are plenty of great oils out there for people to use, these are just the ones I have personally used.
Title: Re: What two stroke pre mix is best?
Post by: TotalNZ on January 24, 2010, 11:32:21 PM
Excellent post, Thankyou Chokey
Title: Re: What two stroke pre mix is best?
Post by: JohnN on January 25, 2010, 04:13:11 AM
I wrote this up a few years ago on another forum, this seems like an appropriate thread for it:

Pre-mix Oils

This isnā??t exactly a scientifically conducted test, itā??s just my opinions and observations about several different oils that I have tried over the last few years, on both my KX250 and my KDX250. All of these results are obtained running a 26:1 ratio, with jetting as close to perfect as I am capable of. Each oil was used through the life of at least one top-end. I only use Wiseco pistons and rings. Remember, these are just my observations and opinions, I'm not trying to to bash anybody's choice of oil, so don't get your panties in a wad...

Golden Spectro: This oil did a good job of protecting the piston and cylinder. The piston was a little shiny on the intake side, but wear was within specs, and the piston and cylinder otherwise looked OK. There was a good coating of residual oil in both the top and bottom of the engine. It is a dirty-burning oil, however. It leaves a lot of carbon deposits on the piston crown and head, and really gums up the ring grooves and the power valves. And this oil spooges! No matter how sharp you try to jet, the spooge simply canā??t be completely eliminated. I wouldnā??t run this oil again unless I had no alternative, itā??s just too dirty. As a side note that may or may not be related to the oil, this is the only pre-mix that I have ever had an engine failure while using, with the thrust-bearings on the KDX250 crank pin seizing. It was probably just a fluke, and I canā??t pin it down to lubrication failure, but itā??s always stuck in my head.

Maxima Super-M: This oil didnā??t protect the piston as well as I would like to see in my engines. The piston was noticably shiny and scuffed on both the intake and exhaust sides, and the top-end was almost dry upon tear-down, although the bottom-end seemed to be well lubed. The ring grooves were reasonably clean, but the piston crown and head had significant deposits, as well as the powervalves, although not as bad as the Golden Spectro. Another oil that I just canā??t recommend, it just doesnā??t seem to leave the engine well lubricated or clean. I also felt this oil left an off-color on the plugs, making jetting a little more difficult.

Maxima Castor 927: Very slight scuffing on the intake side of the piston, but over-all everything looked good. The ring grooves had slight deposits, and the piston crown and head had slight build-up that was well within reason. The powervalves were gummy, but not to the point of seizing or failing, again within reason for a non-synthetic oil, and excellent for a castor-based oil. Both the top and bottom-end of the engine were very oily and well-lubed with plenty of residual build-up. And the smell of this oil is wonderfully sweet, better than any other oil Iā??ve used. I liked using this oil just for the smell! Overall a good oil with no real bad points.

Redline: This was a strange oil. The piston and cylinder looked good, with minor shiny spots but no scuffing, and everything was reasonably clean and well-lubed. But this oil actually left surface rust on the crank wheels, and tarnished the carb brass. It also had a tendency to gum up the carb jets for some reason. How a metal surface can be both oily and have rust on it is beyond me, but clearly this oil lacks any proper corrosion-inhibitors, and it must have very high levels of esters that give it a strong hygroscopic effect. I would never use it again, nor could I recommend it.

Mobil 1 MX2T: The piston and cylinder looked great with this oil. No noticable shiny spots or scuffing on the piston at all. The top and bottom of the engine were well lubed with plenty of residual build-up, and even the powervalves were oily and lubed. No other oil that Iā??ve used compares to the cleanliness of this oil. The piston, head, and powervalves were nearly spotless, the valves didnā??t even really need cleaning. If I were a serious racer, this would be my oil of choice. The only reason I no longer use it is the awful, acrid-smelling exhaust it produces. Since I just play-ride with my buddies, they all complained srongly about the smell when they were riding behind me, and my brother-in-law went so far as to tell me he would ban me from riding with him if I didnā??t change oils. This oil used to be clear, with no dyes whatsoever added to it, creating potential problems with not being able to tell if the gas is mixed or not. But it has since been re-named Racing 2T, and has been dyed red. The smell is still there, though...

Bell Ray H1R: This oil was similar to the Super-M in every way. It left the piston shiney and scuffed-looking, although the top-end wasn't left as dry looking. Deposits were less than with the Super-M, but still heavy enough on the valves to be a problem for riders that run their top-ends for extended periods of time. I could see this oil gumming up the valves enough to cause them to stop functioning. An acceptable but un-exceptional oil.

Yamalube 2R: For a dino-based semi-synthetic oil, this is an exceptional product that performs as well as any full-synthetic out there. The piston and cylinder always look good, with no significant shiny spots or scuffing. The ring grooves, piston crown, and combustion chamber were very clean, with only a light circular carbon pattern on the crown and head. The valves are almost as clean as with MX2T, although not clean enough to not need removing and cleaning. The top and bottom of the engine are always well lubed with plenty of residual oil, even on the powervalves. This is my oil of choice, and I whole-heartedly recommend it to everyone, racer and casual rider alike.

These are only a few of the oils on the market. There are plenty of great oils out there for people to use, these are just the ones I have personally used.


This is a fantastic post!! I love when something is based on personal experience like this... you get a real sense for how something works.

Welcome to the forum!
Title: Re: What two stroke pre mix is best?
Post by: GPRRacing52 on January 25, 2010, 08:36:53 AM
Are here no guys that are using Castrol A747 or XR77?
the are one of the best 2 stroke oil in the world!
Title: Re: What two stroke pre mix is best?
Post by: MMS on January 25, 2010, 09:10:29 AM
Are here no guys that are using Castrol A747 or XR77?
the are one of the best 2 stroke oil in the world!

I'm a Castrol user. 747 for everything I have that needs pre-mixing and TTS or R2 for any of the road bikes that have an auto-lube system.

I assume that for whatever reason Castrol isn't available in the "States" at all or else has a very poor distribution network or something.

I stick with 747 over the XR77 as even Castrol themselves say that despite everything else, nobody has come up with a full synthetic component to match the ultimate anti-seize properties of castor oil. It's only drawback is that it won't mix well with most of the specific race fuels on the market, which is when you should use XR77, but that doesn't affect me so I'll be using 747 as long as they keep it on the market.

I use it in the Maico's, any newer 250's that I've had, had an EC300 Gas Gas for a while and run it, the minibikes, we also have an 100cc direct drive kart with a very trick (Italian) Iame Sirio engine that revs to the moon and back and it runs on it. I know I few guys still running TZ's both old and new, Banshee quads, all of them swear by 747, and me too!
Title: Re: What two stroke pre mix is best?
Post by: ford832 on January 25, 2010, 01:38:24 PM
ok, a lumberjack. i get it. since i started using Husky saws in the the '80's (266 & 181 models)  i will call myself a chain saw amateur.

Well,you may be an amateur,but given your choice of brand,you're still much better equipped than totalNZ.  :D
As for the definition of an NZ lumberjack,google Monty Python's "I'm a lumberjack and I'm ok"
There,totalnz,that's what you get for saying the mighty jred bogs down-lol.
In keeping with the topic of saw choices/superiority,it's all relative.My grandfather worked in the woods his entire life from the horse/oxen/woods camp/river log drive era right up until his death about 15 years ago.My summer vacations were usually spent in the woods with him though when I was younger I used to haul the logs out as he figured I was too young to run a chainsaw safely.Anyhoo,we were at a forestry exhibition one time and were looking at some restored vintage two man chainsaws.After picking one up I said-holy %@$#,what a pig.How would anyone ever use the likes of that monstrosity.Well,he says,when you were used to a double bitted axe and bucksaw,these were quite an amazing piece of gear.Things have certainly come a long way since then.
Title: Re: What two stroke pre mix is best?
Post by: ford832 on January 25, 2010, 01:42:46 PM
Quote from: Helmut Clasen

Interesting also the story how the oil was original developed. ;D


[/quote

Well,we're waiting........ :)

I'd be interested not so much in an obvious piston/cyl wear but a long term crank bearing life as compared to another brand of high end synthetic mixed at a more common ratio.
Title: Re: What two stroke pre mix is best?
Post by: ford832 on January 25, 2010, 01:48:26 PM
I wrote this up a few years ago on another forum, this seems like an appropriate thread for it:

Pre-mix Oils

This isnā??t exactly a scientifically conducted test, itā??s just my opinions and observations about several different oils that I have tried over the last few years, on both my KX250 and my KDX250. All of these results are obtained running a 26:1 ratio, with jetting as close to perfect as I am capable of. Each oil was used through the life of at least one top-end. I only use Wiseco pistons and rings. Remember, these are just my observations and opinions, I'm not trying to to bash anybody's choice of oil, so don't get your panties in a wad...

Golden Spectro: This oil did a good job of protecting the piston and cylinder. The piston was a little shiny on the intake side, but wear was within specs, and the piston and cylinder otherwise looked OK. There was a good coating of residual oil in both the top and bottom of the engine. It is a dirty-burning oil, however. It leaves a lot of carbon deposits on the piston crown and head, and really gums up the ring grooves and the power valves. And this oil spooges! No matter how sharp you try to jet, the spooge simply canā??t be completely eliminated. I wouldnā??t run this oil again unless I had no alternative, itā??s just too dirty. As a side note that may or may not be related to the oil, this is the only pre-mix that I have ever had an engine failure while using, with the thrust-bearings on the KDX250 crank pin seizing. It was probably just a fluke, and I canā??t pin it down to lubrication failure, but itā??s always stuck in my head.

Maxima Super-M: This oil didnā??t protect the piston as well as I would like to see in my engines. The piston was noticably shiny and scuffed on both the intake and exhaust sides, and the top-end was almost dry upon tear-down, although the bottom-end seemed to be well lubed. The ring grooves were reasonably clean, but the piston crown and head had significant deposits, as well as the powervalves, although not as bad as the Golden Spectro. Another oil that I just canā??t recommend, it just doesnā??t seem to leave the engine well lubricated or clean. I also felt this oil left an off-color on the plugs, making jetting a little more difficult.

Maxima Castor 927: Very slight scuffing on the intake side of the piston, but over-all everything looked good. The ring grooves had slight deposits, and the piston crown and head had slight build-up that was well within reason. The powervalves were gummy, but not to the point of seizing or failing, again within reason for a non-synthetic oil, and excellent for a castor-based oil. Both the top and bottom-end of the engine were very oily and well-lubed with plenty of residual build-up. And the smell of this oil is wonderfully sweet, better than any other oil Iā??ve used. I liked using this oil just for the smell! Overall a good oil with no real bad points.

Redline: This was a strange oil. The piston and cylinder looked good, with minor shiny spots but no scuffing, and everything was reasonably clean and well-lubed. But this oil actually left surface rust on the crank wheels, and tarnished the carb brass. It also had a tendency to gum up the carb jets for some reason. How a metal surface can be both oily and have rust on it is beyond me, but clearly this oil lacks any proper corrosion-inhibitors, and it must have very high levels of esters that give it a strong hygroscopic effect. I would never use it again, nor could I recommend it.

Mobil 1 MX2T: The piston and cylinder looked great with this oil. No noticable shiny spots or scuffing on the piston at all. The top and bottom of the engine were well lubed with plenty of residual build-up, and even the powervalves were oily and lubed. No other oil that Iā??ve used compares to the cleanliness of this oil. The piston, head, and powervalves were nearly spotless, the valves didnā??t even really need cleaning. If I were a serious racer, this would be my oil of choice. The only reason I no longer use it is the awful, acrid-smelling exhaust it produces. Since I just play-ride with my buddies, they all complained srongly about the smell when they were riding behind me, and my brother-in-law went so far as to tell me he would ban me from riding with him if I didnā??t change oils. This oil used to be clear, with no dyes whatsoever added to it, creating potential problems with not being able to tell if the gas is mixed or not. But it has since been re-named Racing 2T, and has been dyed red. The smell is still there, though...

Bell Ray H1R: This oil was similar to the Super-M in every way. It left the piston shiney and scuffed-looking, although the top-end wasn't left as dry looking. Deposits were less than with the Super-M, but still heavy enough on the valves to be a problem for riders that run their top-ends for extended periods of time. I could see this oil gumming up the valves enough to cause them to stop functioning. An acceptable but un-exceptional oil.

Yamalube 2R: For a dino-based semi-synthetic oil, this is an exceptional product that performs as well as any full-synthetic out there. The piston and cylinder always look good, with no significant shiny spots or scuffing. The ring grooves, piston crown, and combustion chamber were very clean, with only a light circular carbon pattern on the crown and head. The valves are almost as clean as with MX2T, although not clean enough to not need removing and cleaning. The top and bottom of the engine are always well lubed with plenty of residual oil, even on the powervalves. This is my oil of choice, and I whole-heartedly recommend it to everyone, racer and casual rider alike.

These are only a few of the oils on the market. There are plenty of great oils out there for people to use, these are just the ones I have personally used.


Though I've never used it,it was always my understanding that 927 was a very good oil if you tore your engine down frequently,as it tended to be a a somewhat dirty/gummy oil.As for yamalube,I've found that works well but always left the pv much dirtier than the motul800 I've used for the last number of years.Completely unscientific mind you as far as my own testing goes,just what I've noticed at tear down over the years.
Title: Re: What two stroke pre mix is best?
Post by: Chokey on January 25, 2010, 06:15:49 PM
Are here no guys that are using Castrol A747 or XR77?
the are one of the best 2 stroke oil in the world!
The only Castrol pre-mix oil that is readily available in this area is Castrol 2T Motorcycle oil. It's a generic premix oil that in my opinion doesn't have an adequate additive package for high-rpm high-performance engines. I would only use it in a pinch.

(http://www.castrol.com/assets/bp_internet/castrol/castrol_usa/STAGING/local_assets/images/products/2t_motorcycle450x999.jpg)
Title: Re: What two stroke pre mix is best?
Post by: Chokey on January 25, 2010, 06:32:01 PM


Though I've never used it,it was always my understanding that 927 was a very good oil if you tore your engine down frequently,as it tended to be a a somewhat dirty/gummy oil.As for yamalube,I've found that works well but always left the pv much dirtier than the motul800 I've used for the last number of years.Completely unscientific mind you as far as my own testing goes,just what I've noticed at tear down over the years.
I do tend to rebuild at fairly frequent intervals, typically 40 hours or so. But based on my useage patterns, neither 927 or Yamalube is excessively "dirty".

927 is an excellent oil for hard-core "I can ream a 250 like an 85" racers, because it's a blend of de-gummed castor and a polyalkylene glycol base. The addition of the synthetic base significantly reduces the varnish formations that castor is known for, while the unique ester-forming properties of the castor under intense heat will do an excellent job of protecting the engine when you're pushing it to it's thermal limits.

Synthetics are very clean-burning lubricants, but none of them can protect like castor when running at the ragged limits of your engine. As castor breaks down under thermal stress, it responds by forming ever-heavier esters, in effect becoming a better lubricant as it breaks down. Castor will continue to lubricate long after a synthetic oil has simply boiled away.
Title: Re: What two stroke pre mix is best?
Post by: reefmuncher on January 26, 2010, 05:00:30 AM
My experience has been varied really and some oils worked well and others didn't or at least not in the application I used them in.

A long time ago (early 90's) I used to swear by Shell outboard oil and Evinrude XP outboard oil. Both oils had this distinct smell (could be same oil different dye?) and worked really well with clean burn and on my road going aircooled engine hone marks were totally in tact. Not sure of ratio as it was on pump, but it worked for me with no issues.

At some point a dealer started selling Silkolene oils so I tried the injector and comp 2 oils. For me both ended up making lots of carbon and bore wear seemed more obvious for sure. I quickly went back to the outboard stuff.

On my racing bikes I used blendzall which was super impressive for wear resistance, just did mean ring sticking was something to watch for.

Next came Klotz racing oils and so I used their injector oil on the road bike and premix stuff on the race bike with no troubles. I don't remember all the details then as I guess it worked fine for me so no worries. I started to use Castrol A747 on the race bikes which also did a fine job.

Down the road to more recent times Motul became available to us and I started to use the 510 and 710 on the road bikes and the 800 premix when I blasted them on track days. A friend of mine races scooters which rev at a constant high RPM and they found even the 800 wouldn't offer the protection they required, so they use the Motul kart racing oil which is for 23,000rpm racing engines. They swear by the stuff now and a regimented maintence schedule.

My experiences aren't scientific at all, just what I've stumbled upon along the way. I premix at 32:1 with no deviation, just adjust the oil type for the loading the engine will be doing. So cruising road bikes get the 510 easy to burn off oil, tuned road bikes which get a bit of stick get the 710 better protection oil and when I go to the track (race these days) I mix with the 800 for maximum protection.

I think most brands offer similar oils in their lineups so if I switched to Castrol or others I'd probably follow a similar regime.
Title: Re: What two stroke pre mix is best?
Post by: Hondacrrider on January 26, 2010, 11:07:00 AM
Haha, I just use whatever boat premix I can steal out of the bottom of my dad's oil storage container. Although I do make sure it has that approval thing on the side. I have tried a couple different oils, I tried shell's fully synthetic and it burned really clean, but I missed the smell, I actually like the boat mix better.
Title: Re: What two stroke pre mix is best?
Post by: ford832 on January 26, 2010, 05:20:41 PM


Though I've never used it,it was always my understanding that 927 was a very good oil if you tore your engine down frequently,as it tended to be a a somewhat dirty/gummy oil.As for yamalube,I've found that works well but always left the pv much dirtier than the motul800 I've used for the last number of years.Completely unscientific mind you as far as my own testing goes,just what I've noticed at tear down over the years.
I do tend to rebuild at fairly frequent intervals, typically 40 hours or so. But based on my useage patterns, neither 927 or Yamalube is excessively "dirty".

927 is an excellent oil for hard-core "I can ream a 250 like an 85" racers, because it's a blend of de-gummed castor and a polyalkylene glycol base. The addition of the synthetic base significantly reduces the varnish formations that castor is known for, while the unique ester-forming properties of the castor under intense heat will do an excellent job of protecting the engine when you're pushing it to it's thermal limits.

Synthetics are very clean-burning lubricants, but none of them can protect like castor when running at the ragged limits of your engine. As castor breaks down under thermal stress, it responds by forming ever-heavier esters, in effect becoming a better lubricant as it breaks down. Castor will continue to lubricate long after a synthetic oil has simply boiled away.

Good info Chokey.Thanks.By the sounds of it,the 927 would have been good for my 125's but with the 250,all I ream is my head into the dirt.I'll likely stick with the 800 for that.
Title: Re: What two stroke pre mix is best?
Post by: mxaniac on February 19, 2010, 03:53:19 PM
Power valves seem to like oils like Motul 800, Mobil 1 MX2T, and Castrol TTS.  I think these are classified as group V esters.  All of the ones mentioned are very good but the Castrol is widely available and now that they sell it in a quart bottle it is more affordable than the others.

Read the fine print, small engines need more oil than large ones.  I wouldn't run a 65 cc bike with less than 32:1, the lower rod end bearing has a tendancy to go out.  I say that but my youngest sons 65 cc bike recommends 60:1 but only because they did a crappy power valve design and it gums up and breaks.
Title: Re: What two stroke pre mix is best?
Post by: maicoman009 on April 01, 2010, 02:42:56 PM
My KTM-300xc calls for Motorex oil mixed @ a 60 to 1 ratio.Is anybody else on this site familiar with
Motorex and also why does the new Maicos use Maxima 2t oils?
Title: Re: What two stroke pre mix is best?
Post by: grumpy on April 01, 2010, 08:32:57 PM
Bean oil is good, but has a very short shelf life.

TCW3 (outboard motors) oil is designed for motors that do not exceed 300 degrees in the ring land area, so I'd recommend you avoid it. It's a shame too as TCW3 oil is so much cheaper.

API-TC is the rating you should be using. I'm pretty cheap myself and like to run 16:1 in my old bike. So Yamalube 2R or ValvolineĀ® 2-Stroke Motorcycle Oil (not the outboard stuff) works for me.

I use 16:1 instead of 20:1 because it's a simple ratio to measure out (yes, I know that makes me lazy). Since I ride an old bike I feel better with these ratios. Check out http://www.bridgestonemotorcycle.com/documents/oilpremix6.pdf (http://www.bridgestonemotorcycle.com/documents/oilpremix6.pdf) for a good read on premix ratios. ;)
Title: Re: What two stroke pre mix is best?
Post by: evo550 on April 02, 2010, 03:40:14 AM
I run Castrol R30 (bean oil) @ 50:1 in both my '09 250 sx and my sons 65 sx. This stuff is great, I do a teardown every 15hrs on the 65 and the thing is dripping in oil. I have got 50 hrs from a piston on the 65 that still measured up.
At about $15 a liter it's half the price of motul and motorex, although as mentioned elsewhere, castor oil has a short life once mixed and is very hydroscopic(attracts moisture), carbon build up is also a down side, OH and the smell :-* :-* :-*
Title: Re: What two stroke pre mix is best?
Post by: 2T Institute on April 02, 2010, 04:45:07 AM
(http://i155.photobucket.com/albums/s297/Lozza85_2007/001-2.jpg)

This is a cylinder last ran in 2001 or something been sitting round ever since, some everso slight surface rust on a cast iron bore. NOTHING protects like castor oil. I have yet to have any issues with this varnish everybody talks about?
Have recently sorted big end issues with a bored out KX60 it would last a lap and a half on TTS at 30:1 runs for many meetings on Castor at 20:1
Title: Re: What two stroke pre mix is best?
Post by: graham472 on April 03, 2010, 12:32:06 AM
I've used Castrol TTS for over 15 years at 32:1, 40:1 and for the last 10 years 50:1 and have never done a bottom end. I reckon its great stuff, plus I was getting it for about 12 bucks a litre. In fact none of my mates that used TTS ever had engine problems.
Title: Re: What two stroke pre mix is best?
Post by: Jesse162 on April 13, 2010, 11:06:23 PM
Back on 80's i ran opti 2 and that stuff was terrible, i mixed it exactly how it said on the bottle with chevron highest octane gas everytime. I probably blew 4 top ends that season but i then switched to maxima's castor 927 and that worked great in the summer but when arenacross started the temperature dropped and the oil separated from the gas and caused carburator to plug up. I then switched to Maxima FormulaK2 or somthing like that in the purple bottle and have been running 40:1 in my 125. I raced it hard and never had a problem, still run it to this day
Title: Re: What two stroke pre mix is best?
Post by: RideRedMx2 on April 15, 2010, 05:44:55 PM
I have run Maxima 927@40:1 for years w/o a single failure on all kinds and sized bikes,and will be running it in my 250 i just picked up
Title: Re: What two stroke pre mix is best?
Post by: RedFoxCR on May 31, 2010, 05:44:59 AM
I ran some synthetic Teboil and that was crap.I've burned a piston. i had a few liters and when i finally ran out of it, i went to the nearest chainsaw dealer store. It's an authorised Stihl center and it's located in the ground floor of my block. (Yeah, we're civilized! We don't have any bears wandering around the streets!!!) I bought there some blue semi-syntetic stuff called Stihl HP super, 14 bux per litre ,an oil for two-stroke engines. I thought: man, how long can you hit the gas? a few seconds? a minute? While a chainsaw works CONSTANTLY AT TOP rpm!!!! So, the protective qualities are obvious.
Now i have little left, so i went to an opposite block, where  AGIP dealer is (Russians ain't no tribesmen! we're civilized!!!) and bought AGIP Cross 2t . Haven't tried it yet.

What do you think?
Title: Re: What two stroke pre mix is best?
Post by: 2T Institute on May 31, 2010, 04:29:43 PM
I use AGIP KART , it's very very good oil and so is CROSS 2T. Much better than the chainsaw stuff.
Title: Re: What two stroke pre mix is best?
Post by: ford832 on May 31, 2010, 04:48:51 PM
Over here Stihl oil is made by castrol-not sure about euro.
Title: Re: What two stroke pre mix is best?
Post by: RedFoxCR on June 01, 2010, 12:13:51 PM
I use AGIP KART , it's very very good oil and so is CROSS 2T. Much better than the chainsaw stuff.

You sure? I jetted the bike for Agip mixture and it seems fine. But what about protective qualities. Somewhere in the forum there was an article abot semi-synt . It is supposed not to boil out the cylinder, but to crack and form heavy, hi-viscosity esters, protecting the engine
Title: Re: What two stroke pre mix is best?
Post by: Chokey on June 01, 2010, 08:11:10 PM
I use AGIP KART , it's very very good oil and so is CROSS 2T. Much better than the chainsaw stuff.

You sure? I jetted the bike for Agip mixture and it seems fine. But what about protective qualities. Somewhere in the forum there was an article abot semi-synt . It is supposed not to boil out the cylinder, but to crack and form heavy, hi-viscosity esters, protecting the engine
Petroleum-based oils will not form esters when heated. Only castor will do that.
Title: Re: What two stroke pre mix is best?
Post by: RedFoxCR on June 02, 2010, 12:15:38 AM
Castor oil? You mean that stuff, sold in drugstores? Heard about it. How much should i add?
Title: Re: What two stroke pre mix is best?
Post by: teriks on June 02, 2010, 01:22:10 AM
Castor oil? You mean that stuff, sold in drugstores? Heard about it. How much should i add?
You could always add a small quantity of for the great smell of it ;)

Seriously unless you are prepared to clean the power valve and combustion chamber often, don't use it. It sure has some great qualities, but I personally don't think it's worth using in an (recreational) mx bike.
This comes from someone who's forced by rules to use a mix of 80% methanol and 20% castor in model racing engines. -Tear down and clean, clean clean every ~10 minutes of running... it have saved me from disaster when running too lean a number of times thoug.

Here's some old but good info on castor oil.
http://www.go-cl.se/castor.html (http://www.go-cl.se/castor.html)
The discussion is mainly about application in two-stroke model engines, but it's still applicable on a two-stroke mx bike.
Title: Re: What two stroke pre mix is best?
Post by: RedFoxCR on June 02, 2010, 02:38:37 AM
So, i've read the article. And the only thing i can't deal with is what is "TOO lean". How can i feel the edge between "lean" and 'too lean'??
Title: Re: What two stroke pre mix is best?
Post by: teriks on June 02, 2010, 05:13:22 AM
That's where experience, plug reading and such come into play I guess.
I really don't have too much experience of tuning a gasoline two-stroke engine, and I'm convinced that it's behavior differs a bit from the methanol glow-ignition engines I'm used to.

In other words, your question is better answered by someone else. :)

Edit: I do own and run a dirt-bike, a KTM 250SX. It's got more power than I need, so i have no reason for jetting it "on the edge". Hence no real experience in tuning an mx bike.
Title: Re: What two stroke pre mix is best?
Post by: 2T Institute on June 02, 2010, 06:48:23 AM
You sure? I jetted the bike for Agip mixture and it seems fine. But what about protective qualities. Somewhere in the forum there was an article abot semi-synt . It is supposed not to boil out the cylinder, but to crack and form heavy, hi-viscosity esters, protecting the engine

Unless you have found some thing that EVERY GP125/Shifterkart/Sprint kart/vintage mx and road racers have yet uncovered. They use power valves etc etc. If you have deposits/gum it's your jetting and igniton that is at fault.

The difference between lean and too lean is the former you go fast the latter you go real fast then stop.
Title: Re: What two stroke pre mix is best?
Post by: teriks on June 02, 2010, 07:44:22 AM
You sure? I jetted the bike for Agip mixture and it seems fine. But what about protective qualities. Somewhere in the forum there was an article abot semi-synt . It is supposed not to boil out the cylinder, but to crack and form heavy, hi-viscosity esters, protecting the engine

Unless you have found some thing that EVERY GP125/Shifterkart/Sprint kart/vintage mx and road racers have yet uncovered. They use power valves etc etc. If you have deposits/gum it's your jetting and igniton that is at fault.
I guess that was a response to my post? If not, just forget this part.

I can see that I was a bit unclear, the "Tear down and clean, clean clean every ~10 minutes of running"-part applies to my 6.6cm^3 (.40cui) engines producing around 4hp at some 33000 to 34000rpm. Due to design they are very sensitive to deposits.
A typical two-stroke MX-engine would not require even close to the same amount of cleaning.
I still believe that running castor oil in an mx bike will lead to more deposits than a modern syntetic oil. Not worth it in a recreational bike i.m.o.
Quote
The difference between lean and too lean is the former you go fast the latter you go real fast then stop.
Sounds similar enough to the small engines. Really fast to start with -> Loss of power -> Sudden stop. ;)
Title: Re: What two stroke pre mix is best?
Post by: FatBiker on June 23, 2010, 08:41:21 PM
I fully agree modern synthetics have a lot of plusses...however with ANY "performance" two stroke oil price is not one of them!

You would surprise yourself trying the cheapest outboard boat oil you can find that's certified TC -w3 or whatever that is...

Walmart supertech is less than 10 a gallon, and will blow your mind in performance when mixed at appropriate ratios (around 30:1 for most people works great)

Penzoil's oil is great too...along with a lot of other "budget" outboard oils.

As far as mx specific oils, pretty much can't go wrong if you mix at the right ratio for your application, some of the amsoil products burn incredibly clean though I have had some odd issues with it in other areas.
Castor 927 is IMHO the best all out race lubricant but I suggest frequent tear downs with it for carbon.

It's interesting that you mention such cheap 2 smoke oil.  When I drug home my "new" '82 RM 250 I didn't have any 2 stroke oil.  I went up to Wal Mart and bought there brand of "outboard" 2 stroke oil, Supertech.  I just wanted to see if/how good my new acquisition ran.  It ran a little smokey at first, iirc they all do 'til warm, but then cleaned right up after a few rips around the back 2 1/2.  It runs great on that stuff!  I doubt I'll run it after this bottle runs out.  It stinks just like a chainsaw but seems to work.  I mixed it 32:1.
Title: Re: What two stroke pre mix is best?
Post by: keeptwostrokesalive on July 15, 2010, 09:46:57 AM
klotz super techniplate is awesome.  It smells amazing and i have never had any problems what so ever with it. 
Title: Re: What two stroke pre mix is best?
Post by: factoryX on July 15, 2010, 03:53:50 PM
klotz super techniplate is awesome.  It smells amazing and i have never had any problems what so ever with it. 

x2
Title: Re: What two stroke pre mix is best?
Post by: crash796 on July 17, 2010, 09:48:53 AM
Quaker State 10W-30 @ 20:1 with 87 octaine. ;) Just kidding, Honestly the most important thing is that your jetting is correct for the mixture that you are running. 20:1, 32:1, 50:1 ect. I think people over analize the whole oil thing in two-strokes, four-strokes, planes, trains, automobiles or anything else that uses oil. As long as you are running a quality oil like... Pretty much anything sold in a motorcycle dealership your bike will run fine. You can have the most expensive super duper synthetic racing aircraft grade two stroke oil in your bike but if the jetting is off whats the point? One other thing to keep in mind is regular maintenance if your airfilter has not been cleaned and properly oiled in six months than the best oil in the world is'nt going to do you any good. There was an artical on here a while ago about carburator tuning that was loaded with good info I think everyone should read and undertand everything in that artical before loosing sleep over what brand of oil to use. There my preaching is done for the day.:D
Title: Re: What two stroke pre mix is best?
Post by: Super Trucker on July 23, 2010, 10:14:51 AM
klotz super techniplate is awesome.  It smells amazing and i have never had any problems what so ever with it. 
    I  just  bought  2  bottles   for  my  cr144,  the  mechanic  at  the  KTM  dealership  said  he  ran  it in  all  his  2-strokes, including  a  cr134.  I was  using  Belray  H1R  at  40.1, in  the  38 hp  04 cr125  decked,ported, carb borred  to 40mm, icat, pc pipe,silencer, wiseco gp piston. I  never  had  piston  problems, the  crank  bearings  went  out  at  about  40 hrs., I  ride  it  very hard  though  and  the  crank  was  5 yrs. old.  So  I   think  Klotz  or  927  Maxima  is  a  better  oil, for  a   overborred  motor, that  creates  more  heat, correct me  if  I,m  wrong.
Title: Re: What two stroke pre mix is best?
Post by: RideRedMx2 on July 23, 2010, 10:57:15 AM
I have always had great luck over the years running Maxima 927 racing castor @ 40:1 it has never let me down and i always thought the deposits were acceptable but thats just my opinion......The main thing is find a good oil and stick with it dont vary
Title: Re: What two stroke pre mix is best?
Post by: Coop on July 23, 2010, 11:52:02 AM
......The main thing is find a good oil and stick with it dont vary

+1, too many folks change brands every time they need gas/oil and wonder why they can never figure their jetting issues out.
Title: Re: What two stroke pre mix is best?
Post by: luthier269 on November 23, 2010, 08:12:47 PM
I went with Motul 800 ran all season with no problems.
Title: Re: What two stroke pre mix is best?
Post by: opfermanmotors on November 23, 2010, 08:28:15 PM
I just use peanut butter.  It was good enough for Mister Ed.
Title: Re: What two stroke pre mix is best?
Post by: ford832 on November 24, 2010, 03:42:40 PM
I just use peanut butter.  It was good enough for Mister Ed.

And good enough for any Maico as well :D A horse is a horse of course,of course.... :)

I was using motul 800 and recently went to interceptor simply because the shop I work at is selling it now.
On the other hand,my grandfather,who worked in the woods all his life used 10w30 in his saws and snowmobiles and never blew an engine.He'd just give them a really good shake before use as it tended to separate.I think some of this oil hype is overrated-but I still like good stuff-just in case :)
Title: Re: What two stroke pre mix is best?
Post by: SachsGS on November 24, 2010, 05:24:15 PM
Given how durable the Maico engine is, it probably would tolerate just about any plant based lubricant.

So the next time you have that Yammi pinned and are vainly trying to catch a Maico disappearing in the distance, breath deeply, you might smell peanut butter ;)
Title: Re: What two stroke pre mix is best?
Post by: charlieofak on November 24, 2010, 06:30:32 PM
Wow... doesn't anybody use Amsoil? I'm 2quarts into my first gallon of Dominator and things seem to be going good, burning clean, low spooge @ 32:1
Title: Re: What two stroke pre mix is best?
Post by: ford832 on November 27, 2010, 04:46:10 AM
Given how durable the Maico engine is, it probably would tolerate just about any plant based lubricant.

So the next time you have that Yammi pinned and are vainly trying to catch a Maico disappearing in the distance, breath deeply, you might smell peanut butter ;)

Hahahaha,I'll try to take note of it in the future. :D So far though,I've only noticed the smell of strawberries from a buddies KTM who uses Ipone. :)

Charlieofak,the Interceptor I use now is an Amsoil product-it's good stuff.
Title: Re: What two stroke pre mix is best?
Post by: rookie on November 27, 2010, 05:30:55 AM
castrol TTS
Title: Re: What two stroke pre mix is best?
Post by: HS125 on November 28, 2010, 04:00:05 PM
I use Amsoil Dominator in my yz125 and my sons cr85 @ 40:1 and have had no problems.  Carbon buildup is minimal.
Title: Re: What two stroke pre mix is best?
Post by: MyckMcClung on January 07, 2011, 04:27:00 AM
I ran Klotz for years, then due to the economy and much success using thier other products, switched to Lucas after my last rebuild, I think it's a semi synthetic, I'll have to double check to make sure, . quart for $6 at O'Rielys Auto Parts. the spooge is not super sticky, like most other brands, washes right off w Shout and a hose, actually kinda smells like castor and doesn't smoke. I'll let you know how the top end looks next re ring.
Title: Re: What two stroke pre mix is best?
Post by: beaner on October 12, 2011, 11:17:01 AM
So forgive me for dragging up an old oil thread, but this is the reason I found the forum.
I was looking for an answer to something that I can't explain, and google led me to this thread, which has had a decent technical component to to.
4 years ago, when i bought my RM 125, I was trying different oils (mostly an availability thing) and ended up with some Belray H1R. I immediately noticed a power increase. A significant power increase. I didn't believe it was possible, so I did some back to back testing. It was a very obvious, and very significant difference.
A few weeks ago, I ran out of the Castrol GP 2 stroke I've been using in my vintage bike, and my dealer had a deal on Belray MC 1. I tried it, mixed at the same 40-1 and noticed a significant power increase. Exactly the same as the above, I was able to duplicate it.
Both times it was Belray, and both times the difference was significant. If somebody told me the same thing, I probably wouldn't believe it. The first time I chalked it up to possibly jetting, or the way the oil contributed to combustion, but exactly the same result twice on 2 different bikes.

Can somebody explain what's going on?
Title: Re: What two stroke pre mix is best?
Post by: TMKIWI on October 12, 2011, 12:24:59 PM
Interesting.

I had intended to change to H1R 6 months ago from Total 2R.
Bought the oil ( I can get it at cost ) but broke myself and havn't been on the bike since.
Will find out soon what you are talking about when i get back on the bike.
Wouldn't think there was a power increase , I'm just after best protection I can get.
Title: Re: What two stroke pre mix is best?
Post by: oldermxr on October 12, 2011, 01:35:56 PM
I use Golden Spectro @40:1 with 93 octaine
Title: Re: What two stroke pre mix is best?
Post by: Mountain Goat on October 12, 2011, 10:30:50 PM
Motul 800 at 50:1.  No splooge, but it leaves carbon on the rear fender.  The bike pops a bit when cold, but runs like a demon when warm.
Title: Re: What two stroke pre mix is best?
Post by: scotty dog on October 13, 2011, 12:10:55 PM
Whats the difference between pre mix stuff and auto injector stuff? I am goin to switch brands and silkolene is the better of what is stocked in my area but theres a couple dollars difference between the two but they say the same thing on the bottle. 
Title: Re: What two stroke pre mix is best?
Post by: beaner on October 13, 2011, 12:43:55 PM
Probably viscosity. I expect the the injector oil will be thinner.

I'm going to move this here, as it was the reason I brought the thread back, but is probably lost in the new page. There seems to be some decent technical knowledge here. I'd like to see is anybody has an idea why this is happening.

So forgive me for dragging up an old oil thread, but this is the reason I found the forum.
I was looking for an answer to something that I can't explain, and google led me to this thread, which has had a decent technical component to to.
4 years ago, when i bought my RM 125, I was trying different oils (mostly an availability thing) and ended up with some Belray H1R. I immediately noticed a power increase. A significant power increase. I didn't believe it was possible, so I did some back to back testing. It was a very obvious, and very significant difference.
A few weeks ago, I ran out of the Castrol GP 2 stroke I've been using in my vintage bike, and my dealer had a deal on Belray MC 1. I tried it, mixed at the same 40-1 and noticed a significant power increase. Exactly the same as the above, I was able to duplicate it.
Both times it was Belray, and both times the difference was significant. If somebody told me the same thing, I probably wouldn't believe it. The first time I chalked it up to possibly jetting, or the way the oil contributed to combustion, but exactly the same result twice on 2 different bikes.

Can somebody explain what's going on?

Title: Re: What two stroke pre mix is best?
Post by: Swimr2DaResQ on October 13, 2011, 12:45:47 PM
Maxima Castor 927 at 40:1 with a mix of 50/50 110 octane race gas and 92 octane pump gas. Love the smell of Castor, 31.5 hours on complete bottom end and top end rebuild with very minimal buildup. Great stuff.
I used Silkolene before the rebuild, full synthetic, not bad stuff, but not as good as Castor in my opinion.
 ::)
Title: Re: What two stroke pre mix is best?
Post by: downonmonday on October 14, 2011, 05:39:57 PM
Ooohhhhh yeah! I use 927 also.
Title: What two stroke pre mix is best?
Post by: 2T Institute on October 18, 2011, 09:48:01 AM
So forgive me for dragging up an old oil thread, but this is the reason I found the forum.
I was looking for an answer to something that I can't explain, and google led me to this thread, which has had a decent technical component to to.
4 years ago, when i bought my RM 125, I was trying different oils (mostly an availability thing) and ended up with some Belray H1R. I immediately noticed a power increase. A significant power increase. I didn't believe it was possible, so I did some back to back testing. It was a very obvious, and very significant difference.
A few weeks ago, I ran out of the Castrol GP 2 stroke I've been using in my vintage bike, and my dealer had a deal on Belray MC 1. I tried it, mixed at the same 40-1 and noticed a significant power increase. Exactly the same as the above, I was able to duplicate it.
Both times it was Belray, and both times the difference was significant. If somebody told me the same thing, I probably wouldn't believe it. The first time I chalked it up to possibly jetting, or the way the oil contributed to combustion, but exactly the same result twice on 2 different bikes.

Can somebody explain what's going on?


Commonly called th 'placebo effect' If it has 'significant' power increases they dyno should ick that up no problems. The lowest oil ratio I ever use is 25:1 or 4%
Title: What two stroke pre mix is best?
Post by: beaner on October 18, 2011, 02:42:56 PM
Definitely not placebo affect. The difference really was that big, and I wasn't looking for it either time.
Title: What two stroke pre mix is best?
Post by: Recovered on October 19, 2011, 04:45:39 PM
is there any better thing for a man's senses than a 350 banshee running blendzall at about 32:1?  holy boner city.

the secret to keeping number plates nice is to stop buying those "shorty" silencers and buy the standard length fmf or PC one that sits flush with the sideplate.  shorties sound cool i suppose but its not worth destroying a number plate every 3-4 rides, especially when everyone is running pre-printed backgrounds that take a month to come in the mail.
Title: What two stroke pre mix is best?
Post by: 2T Institute on October 20, 2011, 09:07:04 PM
Definitely not placebo affect. The difference really was that big, and I wasn't looking for it either time.
I find that very hard to believe. A before and after run on a dyno should be pretty easy.
Title: What two stroke pre mix is best?
Post by: beaner on October 21, 2011, 12:35:53 AM
Definitely not placebo affect. The difference really was that big, and I wasn't looking for it either time.
I find that very hard to believe.

So did I. Like i said, if somebody told me, I probably wouldn't believe it either.
Title: What two stroke pre mix is best?
Post by: Kodackamera on October 26, 2011, 03:28:04 AM
There is a test that can be performed with different oils called a "Power Fade" test...
Title: What two stroke pre mix is best?
Post by: johnfritos on August 06, 2012, 11:39:13 PM
got my first 2 stroke mx bike 2012 yz125   :D . had a yamaha blaster (hated it). but i got klotz benol castor racing 2 stroke oil at the dealer, a worker said he had a rm125 last year and he used that. but ivee heard that castor oil is bad ... not sure. but was thinking of the klotz oils the r50, or the super techniplate. what do you think. btw i ran 31:1 for about 5 practices.
Title: What two stroke pre mix is best?
Post by: beaner on August 08, 2012, 03:10:34 AM
IMO this is the best resource for that information

http://www.maximausa.com/tech-tips/oil-migration.php

Read the conclusions, and follow the recommendations. I think any of the major oils are fine. I am partial to Belray and Maxima oils, but from what I understand, Klotz is topnotch stuff. I use Maxima castor oil in my own 125 and my vintage bike.
You can't go wrong mixing 32-1 for your 125
Title: What two stroke pre mix is best?
Post by: Swimr2DaResQ on August 10, 2012, 04:27:57 AM
A little bit off topic but a good read none the less!
http://www.maximausa.com/lube-news/lubenewssummer2001.swf
Title: What two stroke pre mix is best?
Post by: _X_ on August 11, 2012, 07:53:48 PM
I can't believe this is six pages long! its premix for crying out loud.
Title: What two stroke pre mix is best?
Post by: _X_ on August 11, 2012, 07:55:59 PM
shit i made it seven.
Title: What two stroke pre mix is best?
Post by: beaner on August 11, 2012, 08:11:44 PM
Title: What two stroke pre mix is best?
Post by: Stusmoke on August 16, 2012, 01:10:04 PM
I'll just weigh in with my: castrol fully synthetic oil and 98 octane @ 32:1
Title: What two stroke pre mix is best?
Post by: Jeram on August 21, 2012, 11:16:55 PM
going to be testing a new breed of two stroke oil soon on all my bikes.

Its got a ceramic additive in it that is tested to be 3 times slipperier than PTFE (the most slippery substance know to man).

Comes in 2 variants,

1. full synth
2. castor synth

Ill let you guys know how it goes in the supermotard ;)
Title: What two stroke pre mix is best?
Post by: riffraff on August 22, 2012, 05:07:00 AM
hmmm, apparently PTFE is now the second slippiest substance to man  ;D Who makes the stuff Jeram, or is it a secret for now?
Title: What two stroke pre mix is best?
Post by: Jeram on August 22, 2012, 06:26:17 AM
its available to the public, but I want to test it out first in a month or so and Ill let you know how it goes.

not too bad value at $45 AUD a liter (bout the same as AGIP), would be cheaper in the USA and Europe too.
Has been very successful in superkart racing.
Title: What two stroke pre mix is best?
Post by: scotty dog on August 25, 2012, 03:45:19 AM
its available to the public, but I want to test it out first in a month or so and Ill let you know how it goes.

not too bad value at $45 AUD a liter (bout the same as AGIP), would be cheaper in the USA and Europe too.
Has been very successful in superkart racing.
$45 a litre ??? ??? Holy s!!t!!
Title: What two stroke pre mix is best?
Post by: factoryX on August 25, 2012, 05:35:26 AM
LOL, I think I'm going to stick to Powerpunch @ $4 lmfao.
Title: What two stroke pre mix is best?
Post by: Jeram on August 25, 2012, 01:22:49 PM
its available to the public, but I want to test it out first in a month or so and Ill let you know how it goes.

not too bad value at $45 AUD a liter (bout the same as AGIP), would be cheaper in the USA and Europe too.
Has been very successful in superkart racing.
$45 a litre ??? ??? Holy s!!t!!

when it saves a $600 of nikasil plating and piston its worth it.



Title: What two stroke pre mix is best?
Post by: beaner on August 25, 2012, 08:43:07 PM
I just think it's awesome that you're keeping it a secret.
Title: What two stroke pre mix is best?
Post by: Jeram on August 26, 2012, 12:48:04 AM
its not a secret, if you wanted to find out what it is you would be able to find it ;)

Title: What two stroke pre mix is best?
Post by: SachsGS on August 26, 2012, 03:24:29 AM
Snake oil base? ;)
Title: What two stroke pre mix is best?
Post by: TotalNZ on August 26, 2012, 05:25:40 AM
Xeramic.com
Title: What two stroke pre mix is best?
Post by: TMKIWI on August 26, 2012, 07:35:40 AM
when it saves a $600 of nikasil plating and piston its worth it.

Yes and no there Jeram.
I think most of us have no problems when using good quality oils.
If a ring decides to brake or a locating pin comes out of the piston it doesn't matter jack what oil you use , your nikasil is gone.
Just saying.
Title: What two stroke pre mix is best?
Post by: Jeram on August 26, 2012, 07:52:20 AM
when it saves a $600 of nikasil plating and piston its worth it.

Yes and no there Jeram.
I think most of us have no problems when using good quality oils.
If a ring decides to brake or a locating pin comes out of the piston it doesn't matter jack what oil you use , your nikasil is gone.
Just saying.

yes but thats about as relevent as saying, if your backwheel falls off will your premix save you.
both are unrelated to premix.

but where good oil comes in to save your barrel is when the piston gets very hot and expands to the point where you have very little or no clearance between the piston and the bore

at hot temps, synthetic oils simply vaporise and all their lubricating properties are lost, but racing castors form even more complex esters at high temps. So the hotter your engine runs the more lubricating capacity castor oil has which is reverse proportional to synthetics.

Add some castor to some synthetic and add a dash of super slippery ceramic additive and you get a very nice oil that gives you the best of both worlds.
1. cleaner running and less varnish due to the synthetic, great lubricating properties for low temp running
2. high temp protection when you need it thanks to the castor
3. reduced friction due to ceramic additives when you really need it (seizure time)
Title: What two stroke pre mix is best?
Post by: TMKIWI on August 26, 2012, 08:03:25 AM
Yes I agree with all of the above, I was thinking for the average rider who shouldn't have problems with high piston temps, flash oils are not necessary.
For a racer who has their motor jetted for max horse power ( on the verge of seizing ) yes the oil you are talking about will have major benefits.
Title: What two stroke pre mix is best?
Post by: TMKIWI on August 26, 2012, 08:07:57 AM
P.S What bike are you trialing it in ?
Title: What two stroke pre mix is best?
Post by: 2T Institute on August 26, 2012, 09:57:33 AM
Yes I agree with all of the above, I was thinking for the average rider who shouldn't have problems with high piston temps, flash oils are not necessary.
For a racer who has their motor jetted for max horse power ( on the verge of seizing ) yes the oil you are talking about will have major benefits.

Not really have seen significantly less piston wear and scuffing on the cylinder simply adding Castrol R30 to the tank at (100:1) running in conjuction with an oil pump on a daily rider Aprilia RS125
Title: What two stroke pre mix is best?
Post by: Jeram on August 26, 2012, 01:23:23 PM
thats not half bad lozza! didnt think of that