Star brite Star Tron enzyme-based additive cures & prevents fuel problems while increasing fuel economy and engine power in addition to reducing emissions. Stabilizes gas for short and long term periods of inactivity (up to two years) while preventing the formation of varnish. Eliminates carbon buildup in fuel delivery system and exhaust components. Increases octane and removes water from the fuel, making it the perfect solution to prevent and eliminate ethanol (E-10) fuel problems.Reduce fuel consumption and engine wear while increasing powerEnzymes treat water in fuelFor use with any engine1 Gallon treats 2,048 gallons of gas