As in the fuel treatment/cleaners made by stp and brands like that?And does anyone who has experience using them actually see a performance boost?
Today's gasolines have additives in them. Using them are pretty much a waste unless you are trying to absorb water. All you would end up doing is putting deposits on your spark plugs.
additives are good like fuel injector cleaner and gas treatment, these are good and do work, and these are not added to gas like the last guy said. yes they do work thats what they make them for. getting a bettter quality gas is always a plus and keep your engine in tip top shape, and youll notice any lil difference.
it never harmed my engine and i used it a lot.
