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Mobil Delvac™ Extreme synthetic diesel oil in a commercial trucking garage.

Mobil Delvac™ commercial vehicle lubricants are used across a broad range of industries. The brand’s long history of proven engine protection and performance has kept business and industry moving for more than 90 years.

Chosen by many of the world’s leading heavy-duty original equipment manufacturers, Mobil Delvac oils help extend the life of your engine, so you can keep going strong on the road.

Engineered for extreme conditions

Mobil Delvac™ Extreme engine oils feature a boosted formulation that provides excellent engine protection – even in extreme conditions.

Raising the bar on freight efficiency

ExxonMobil engineers supported Volvo in developing its new SuperTruck. Learn about the benefits of Volvo's futuristic concept vehicle.

Fuel economy

Discover the potential to increase fuel economy with Mobil Delvac 1™ fully synthetic diesel engine oils.

Protect your investment

Mobil Delvac™ oil technology helps keep your engine clean and running strong. Learn how.

Low emission engine lubrication

Mobil Delvac™ oils are designed to lubricate and help protect modern, low emission engine designs.

The history of Mobil Delvac™

For 90 years, Mobil Delvac diesel engine oil has continued to evolve through groundbreaking innovation. Discover the milestones that have led to millions of miles - protecting engines to keep the wheels of progress turning.

Energy lives here