Mobil Super 3000 XE1 5W-40 is a synthetic high-performance low ash engine oil designed to help prolong the life and maintain the efficiency of the Exhaust Car Emission Reduction Systems in both diesel and gasoline powered automobiles.The product helps to maintain the efficiency of the Exhaust Emission Reduction systems in both diesel and gasoline vehicles, permits extended operation at elevated temperatures without oxidative oil thickening and oil breakdown, provides excellent fluidity at low temperatures allowing easy winter starting and rapid oil circulation around the engine, while is suitable for use in both gasoline and diesel engine passenger car and light commercial vehicles.