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?