Add Quickstor to fuel before storing your engine to ensure your fuel is ready to go at the start of the next season. Use Quickstor to: Prevent regular and ethanol-blended fuel from breaking down and oxidizing Prevent fuel system corrosion Prevent gum and varnish from forming in the fuel and settling in fuel lines and tanks, carburetors and injectors Keep injectors and carburetor lubricated Stabilize fuel for up to a year