WILL NOT VOID OEM OR MANUFACTURERS WARRANTY. USE GUMOUT FUEL INJECTOR AND CARBURETOR CLEANER AT EVERY FILL UP. THIS 6 fluid ounce BOTTLE TREATS UP TO 21 GALLONS OF GASOLINE. ADD ENTIRE BOTTLE OF GUMOUT FUEL INJECTOR AND CARBURETOR CLEANER TO NEARLY EMPTY GASOLINE TANK, THEN FILL TANK WITH UP TO 21 GALLONS OF GASOLINE.
