Treat your gasoline and diesel engine using the Lucas Oil 10002 Heavy Duty Oil Stabilizer. It's a blend of super slick oils and additives with a high detergent action, making the engine operate at maximum efficiency. This heavy-duty stabilizer cleans and lubricates the carburetor, causing the fuel to burn thoroughly for increased power and low fuel consumption. Ideally, Lucas fuel treatment ought to be used in cars that use leaded fuel. It replaces the benefits of lead in gasoline without causing harmful emissions, making it environmentally friendly. This car stabilizer is petroleum and thus can safely blend with all other automotive lubricants, synthetics, ATF and mineral oil. Use the Lucas OiL 10002 Heavy Duty Oil Stabilizer in gear oil to curb leaks, lower the operating temperatures and give the gear oil a longer life.