Protects the complete fuel system, conditions fuel, and extends useful shelf life when added to fresh fuels. All operator and service literature encourages the use of 2 + 4 fuel conditioner, for day-to-day operation, particularly during periods of engine non-use. Gasoline, as purchased at the pump, has a guaranteed shelf life of three months. 2 + 4 fuel conditioner extends the useful life of fuel in a number of ways.

Metal deactivators - to render brass or copper alloy chemically inactive toward gasoline
Anti-oxidants - to slow the chemical breakdown of gasoline
Double strength - treats more fuel per ounce
Corrosion inhibitors - to help reduce long term corrosion of metal fuel system components
Dryers - to absorb and isolate moisture in the fuel system
Concentrated formula - 8 oz. treats 32 gallons, 16 oz. treats 64 gallons, 32 oz. treats 128 gallons