I had a problem with No Toil cleaner as well. There formula works great as long as you use their filters. If you use any other brand filter it will affect the glue used to hold the filter together. Rendering your filter DOA.
When you use gasoline it's a pain to get rid of the dirty gas, unless you dump it in your yard or put it into a container to recycle at the parts store along with your used oil.
I have found a product from England that does great job using a water based cleaner.
One of the reasons I have been noticeably absent from the forum is because I am the new distributor of Pro Clean products for the US and Canada. There is so much that must get done very quickly, including building the web site, which is not yet complete.
I have the products in stock and ready to ship. Since I have not completed the shopping cart yet, if anyone from this forum orders these products in the continental USA I will ship your order FREE!
We tested the Filter Cleaner and it works really well.. is safe for filters and is easy to dispose of.
Feel free to poke around the site.
http://www.proclean-racingusa.comI'd love to hear your feedback and constructive criticism.