Eliminates water from fuel systems. Works with 2- and 4-stroke engines. Revitalizes old gas. Boosts octane by up to two points. Stabilizes fuel for up to two years. Cleans injectors, Replacement Parts Carburetors and fuel system components. Alters burn chemistry for more complete combustion. Proprietary formulation of complex organic bio-based (green) compounds. Regular use results in more power, better mileage and a cleaner environment. Treats 16 gallons.