Synthetic blend diesel engine oils provide excellent protection and long drain capability in modern diesel engines.
Mobil Delvac™ Extreme and Mobil Delvac™ Extreme FE premium synthetic blend heavy-duty diesel engine oils are recommended by various engine builders for use in many high-performance diesel engines.
Uses synthetic blend technology to provide excellent protection in modern, high-performance diesel engines.
Helps extend engine life, provides long drain capability and meets or exceeds the new API FA-4 specification for fuel-efficient engine oils.
Learn about the satisfaction and pressure of hauling Tony Stewart’s racecar from Ken Gober, truck driver for the Stewart-Haas Racing team.
Check out our interactive bumper-to-bumper guide.
Use our locator tool to find out where to buy Mobil Delvac™ products in your area.