This Lucas Oil product is a high-quality synthetic gear oil lubricant designed to ensure smooth and efficient operation of your vehicle's transmission and differential. With a viscosity of 75W-140, it provides excellent protection against wear and tear, while its GL-5 rating ensures that it is compatible with a wide range of vehicles. This item comes in a pack of 4 quarts and is made in the United States. It is suitable for use in a variety of automotive applications, including trucks, SUVs, and sports cars. Whether you're replacing your old gear oil or upgrading to a more reliable lubricant, this Lucas Oil product is an excellent choice.