The Valvoline VV975 Synthetic Rear End Oil is a high-quality product designed for optimal performance in automotive gear and differential systems. With a viscosity rating of 75W - 90, this oil provides excellent lubrication and protection for rear ends. Made in the United States by Valvoline, a trusted brand in automotive products, this one-quart container of oil is a must-have for any vehicle maintenance and repair enthusiast. Additionally, the product comes with a California Prop 65 Warning, ensuring users are aware of any potential hazards.