Ok, way out in left field here guys but this works, really it does. I had a ST .45 that had run to hot and the carb barrel froze up. Well after that it was real hard to move so I took it apart and buffed it real good with a toothbrush and crest toothpaste, yes I said crest! I learned this from an older gent who has been rebuilding these engines since Moses was a corporal in the Army.
I have used it on pistons and liners also and it does work and sometimes the most simple way of doing something can be the best. I hate a dirty engine and all I do after a day of flying is wipe it down real good to get the residue off, nothing more.