MOTION-PLUS™ COMBUSTION CHAMBER CLEANERMotion Plus Combustion Chamber Cleaner is a formula that cleans and removes carbon and residues from the injectors, intake valves, pistons and the whole combustion chamber. This increases fuel efficiency, power and life in engines. For optimum results, use Motion Plus Fuel Treatment into the fuel tank on every oil change. It only works in gasoline engines. The Combustion Chamber Cleaner is applied with a special tool directly thru the intake valve (or