Richmond Gear Oils are designed to provide maximum protection and performance under the most demanding conditions. Formulated with high quality, thermally stable, base stocks and exclusive pressure, limited slip additives which stay in suspension. This 80W/90 High Performance Gear Lubricant is designed for High Performance Racing Differentials, and Posi-Traction units. Richmond Gear Oils exceed manufacturer specifications for use in heavy duty car, light truck and commercial truck applications.