Lucas Fuel treatment is designed to increase power and fuel mileage and lower exhaust emissions. Formulated for both gasoline and diesel engines, carburated or fuel injected. Provides a blend of super slick oils and additives that contain no solvents, but employs a high detergent action that allows the engine to operate at maximum efficiency. Also cleans and lubricates the carburetor and injectors and causes the fuel to burn more thoroughly for increased power and less fuel consumption. Should definitely be used in vehicles that require leaded fuel because it replaces the benefits of lead in gasoline without causing harmful emissions. Use it to pass smog tests. Neutralizes the harmful effects of low sulfur diesel fuel. Lucas Fuel Treatments complies with the Federal low sulfur content requirements for use in diesel motor vehicles and nonroad, locomotive, and marine diesel equipment engines. 5.25 fl. oz.