Star Tron Enzyme Fuel Treatment is a multifunctional fuel additive that stabilizes fuel, improves efficiency, and eliminates ethanol-related issues. The gas additive with enzyme technology breaks down excess water and sludge, preventing phase separation while cleaning the fuel system to remove gum and varnish deposits. This results in easier starts, smoother operation, and increased fuel economy for boats, cars, trucks, motorcycles, ATVs, and small engines. One 8 oz. bottle treats 128 gallons of fuel, making it an efficient, cost-effective solution for fuel system maintenance. Improves fuel efficiency and prevents ethanol fuel issues Cleans the fuel system by removing gum, varnish, and carbon buildup Prevents phase separation by breaking down excess water and sludge Stabilizes fuel and helps prevent fuel breakdown for up to two full years Works in all gas engines - boats, cars, motorcycles, ATVs, and small engines 8 oz. bottle Made in the USA