First thing--the 'acetone' in fuel' thing was started as a JOKE--IT DOES NOT WORK.

@nd--use 'top tier' gasolines --they are the best. They advertise 'clean up, drive clean, etc because that is what they will do--and WILL keep the fuel system and combustion chambers clean. Texaco,Chevron,Shell, BP/Amoco, Conoco/Phillips and?