STA-BIL Fuel Stabilizer keeps fuel fresh for quick starts after storage and all year round. STA-BIL is a blend of additives which prevent fuel from undergoing degradation and oxidation during prolonged storage. It acts as a protective "wrapper" around fuel molecules so they don't combine with oxygen to make fuel go stale. Fuel stabilized with STA-BIL stays fresh and will perform as though it had just been pumped from the refinery pipeline. Typically, the life of gasoline treated with STA-BIL is extended from 2 months to 15 months. • Prevents fuel deterioration (fuel begins to break down after 60 days)• Prevents formation of gum and varnish• Corrosion inhibitor prevents rust• Protects fuel system during storage• Helps keep carburetor, fuel injectors and fuel line clean• Eliminates need to drain fuel• Perfect for generators• Recommended by 70 engine and equipment manufacturers• 32 oz. size treats up to 80 gallons of fuel Corrosion inhibitor prevents rust Protects fuel system during storage Helps keep carburetor, fuel injectors & fuel line clean