Alcohol-free Yamalube Fuel Stabilizer and Conditioner PLUS is specifically formulated to help protect your engine's fuel system from the harmful effects of ethanol-enriched fuel, including its corrosive effects on metals as well as fuel system gum and varnish that can result from fuel oxidation. Also effective with non-ethanol fuels. When used as directed, helps keep fuel fresh and potent during normal use and even up to 1 year of storage. May be used with Yamalube Ring Free Plus. Use this product on a continuous basis. 1 oz. Fuel Stabilizer & Conditioner PLUS to every 3 gallons of fresh gasoline. For storage over 2 months add 1oz of Fuel Stabilizer & Conditioner to every 1 gallon of fresh gasoline. Run the engine for several minutes to circulate the treated fuel and top off the tank with treated fuel to minimize condensation. Keeps fuel fresh and potent up to a year during prolonged storage.