Lucas Oil Fuel Treatment is designed to increase power and fuel mileage and also lower exhaust emissions through a more complete combustion. Formulated for both gasoline and diesel engines, carbureted or fuel injected, it gives your fuel system what it really needs - a powerful blend of super slick oils and additives with a high detergent action that allows the engine to operate at maximum efficiency, with no solvents. Lucas Fuel Treatment cleans and lubricates the carburetor and injectors and causes the fuel to burn more thoroughly for increased power and less fuel consumption, and should definitely be used in vehicles that require leaded fuel because it actually replaces the benefits of lead in gasoline without causing harmful emissions. Use it to pass smog tests. It totally neutralizes the harmful effects of low sulfur diesel fuel. Lucas Fuel Treatment complies with the federal low sulfur content requirements for use in diesel motor vehicles and non-road, locomotive and marine diesel equipment engines.A great tune-up in a bottleCleans and lubricates the fuel systemNeutralizes low sulfur fuel problemsIncreases power and miles per gallon by burning excess exhaust emissionsIncreases the life of pumps and injectorsDirections: Pour Lucas Fuel Treatment directly into fuel tank. Recommended dosage is 2 to 3 ounces of Fuel Treatment per 10 gallons of fuel. Exceeding the recommended dosage is not harmful to the vehicle.