Mobil Super™ Synthetic 5W-30 is a full synthetic high-performance motor oil that provides excellent high temperature protection even under severe operating conditions. It is designed to help provide long engine life and outstanding protection in vehicles of all ages, outperforming our conventional-synthetic blended products. This oil provides outstanding performance and protection against sludge, engine rust and corrosion under severe and low-temperature operating conditions, and provides optimum viscosity and fluidity across a broad range of temperatures. Mobil Super Synthetic oils are specially formulated to help protect engines of all ages. The full synthetic formulation outperforms our synthetic blend Mobil Super™ and Mobil Super™ High Mileage motor oils. 6 Quarts/Case