Easy way to clean your injectors, intake valves and combustion chamber is to but 2 gallons of E85(85% alcohol)in your car and fill it up with your favorite gas. Or just get a gallon of Xylene from your favorite paint store and fill your tank up with gas too.

Gasoline already has these additives in it anyway, you will be just adding some more to clean and raise your octane

Won't hurt and it works...
