Royal Purple’s Max-Clean is a state-of-the-art synthetic fuel system cleaner and
fuel injector cleaner that deeply penetrates and cleans injectors, carburetors,
intake valves and combustion chambers to restore fuel economy and reduce emissions.

Recommended Treat Rate & Usage
10,000 Mile Interval – 20 oz. can
Pour entire contents of 20 oz. can into a nearly empty tank and refuel. One (1) can treats up to 20 gallons. For tank sizes outside of this range, use one (1) ounce per gallon. In 2-cycle engines, use one (1) ounce per one (1) gallons.