The Valvoline Flex Fill Full Synthetic 75w-90 Gear Oil is a high-quality automotive lubricant designed for gears and differentials. With a viscosity rating of 75W - 90 and a GL rating of GL-5, this gear oil provides excellent protection and performance. The 1qt. pack size makes it convenient for both small and larger vehicle maintenance needs. Manufactured by Valvoline, known for its reliability and quality products, this gear oil is sure to keep your vehicle running smoothly and efficiently.