Mobil Delvac Extreme 10W-30 is a premium and high-performance synthetic diesel engine oil that helps to extend engine life for modern diesel engines operating in extreme conditions, Works to deliver extended performance for up to two times beyond OEM recommended oil drain intervals* with the potential to improve fuel economy**, Recommended for use in a wide range of heavy-duty, on- and off-highway applications including engines operating under heavy loads, Provides exceptional stability***, anti-wear performance, and high temperature performance, Excellent low-temperature performance for increased oil flow at startup, controlling sludge formation, and stay-in-grade shear stability.
