Quicksilver Precision Care QuickStor Fuel StabilizerQuickStor Fuel Stabilizer helps prevents regular and ethanol-blended fuel from breaking down and oxidizing. This fuel stabilizer also prevents gum and varnish from forming in the fuel and settling in fuel lines and tanks, carburetors and injectors.Features: Prevent regular and ethanol-blended fuel from breaking-down and oxidizing; Keeps fuel fresh for up to 2 years; Prevents fuel system corrosion; Prevent gum and varnish from forming in the fuel and settling in the fuel lines and tanks, carburetors and injectors; Keeps carburetors and injectors lubricated; Instructions: Pour the proper amount of Quickstor into the fuel tank - 1 ounce treats 5 gallons.; Add gasoline.; Run engines for 5 to 10 minutes to ensure the product treats the entire fuel system.;