A full synthetic heavy-duty diesel engine oil, Mobil Delvac 1™ helps extend engine life while providing long oil drain intervals, extreme high- and low-temperature performance and fuel economy potential.* It is backed by our exclusive limited warranty, providing protection for you and your fleet.
*Relative to conventional higher viscosity engine oil. Actual fuel economy improvement is dependent on vehicle/equipment type, outside temperature, driving conditions and your current fluid viscosity.
Uses state-of-the-art technology to help deliver exceptional performance and enhanced protection in challenging conditions.
Delivers long drain capability and fuel economy potential for modern diesel engines in severe applications.
Learn about the satisfaction and pressure of hauling Tony Stewart’s racecar from Ken Gober, truck driver for the Stewart-Haas Racing team.
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