I read the other acetone thread with interest, so PLEASE let Spumonti do his thing.If it makes him happy and he learns somthing and passes it on to the rest of us,then WE learn it ,too! As for me, I'm going to try OLIVE OIL, because I want to slick up my pistons an see if THAT smooths out my engine and gives me better mileage, WITOUT adding cholesterol to my wonderful new SMART. I'll keep ya' posted,boys!! CHEERS, SmartChip