Star Tron Enzyme Fuel Treatment deploys an advanced enzyme technology, enabling all engines to turn on quickly and run reliably, even with ethanol-modified fuel or after being idle for an extended period. Complete fuel combustion is enabled, maximizing power and efficiency, while keeping the engine operating reliably. Fuel can be stabilized for up to 2 years, deterring the assembly of gums and solids that can clog carburetors and fuel injectors. Star Tron helps thwart phase separation by suspending water in fuel as submicron-sized droplets, which are safely discharged while the engine runs. Suitable for use in all gas engines, including boats, cars, trucks, motorcycles and smaller equipment using pre-mix fuel, Star Tron Small Engine formula is perfect for your needs.