Royal Purple Max-Clean Fuel System Cleaner and Stabilizer 11722 20 Ounce Description Royal Purple Max-Clean is a state-of-the-art high performance fuel system cleaner that maximizes the performance of your fuel system. Max-Clean restores fuel economy by deeply penetrating deposits and cleaning injectors, carburetors, intake valves and combustion chambers. Royal Purple Max-Clean is EPA / CARB Compliant. Recommended for use in gasoline and diesel engines and can be used with all ethanol blends or biofuel. Max-Clean can be used in both 4-cycle & 2-cycle engines and will not harm vehicle emissions equipment. Features: 3-in-1 fuel additive keeps new engines clean and improves vehicle's performance Improves fuel economy an average of 3.2 percent Increases horsepower an average of 2.6 percent Reduces hydrocarbon, NOx and CO emissions (on average 12, 13 and 18-percent respectively) Fit type: Vehicle Specific Product Details: Manufacturer: ‎Royal Purple Brand: ‎Royal Purple Model: ‎11722 Item Weight: ‎1.2 pounds Product Dimensions: ‎2.63 x 2.63 x 9.73 inches Country of Origin: ‎USA Item model number: ‎11722 Is Discontinued By Manufacturer: ‎No Manufacturer Part Number: ‎11722 OEM Part Number: ‎11722 Date First Available: January 16, 2013