Reduces Engine Noise Vibration Improves Fuel Efficiency Miles Per Gallon Lowers Operating Temperatures Increases Horsepower and Torque Protects against Friction and Wear 16 ounce TVT GREEN Engine Oil Additive is primarily added to the engine oil in engines of all sizes and can also be used in front and rear ends, power steering, fuel tank, and manual transmissions. It is compatible with petroleum and synthetic oils. Advanced scientific chemistry with the power to protect, enhance and optimize vehicle performance. TVT GREEN is the most advanced molecular based, friction reducing, surface strengthening, metal conditioning technology ever to be deployed to the market, and best of all it is a truly GREEN eco-friendly product. For use in, all passenger vehicles, buses, cars small pickup trucks, large diesel trucks and tractors, heavy duty pickup trucks, four wheelers, lawn mowers including commercial mowers.