The ACDelco GM Original Equipment 10-4016 Differential Oil is a high-quality product designed specifically for GM vehicles. With a viscosity of 75W - 90 and a GL rating of GL-5, this oil is optimized for the performance and longevity of your vehicle's differential. Additionally, the product comes with a manufacturer warranty, ensuring that you can trust in its reliability and durability. Ideal for routine maintenance, this differential oil is a crucial component in ensuring smooth and efficient gear operation in your vehicle.