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Truck using Mobil Delvac™ Extreme

Engineered for extreme conditions

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

Save up to $60 on Mobil Delvac™ engine oils

Save up to $60

Advanced protection for your big rig or pickup. Loads of savings for your wallet.

Checking oil levels on optimized oil drain interval engine

Save money. Boost uptime. Increase oil drain intervals.

The Optimized ODI Process works. See what Mobil Delvac™ lubricants and ExxonMobil engineers can do for you.

Mobil Delvac™ CK-4/FA-4 products

The gold standard in engine oil.

Get the best tech for big trucks. Discover how CK-4 and FA-4 Mobil Delvac™ heavy-duty diesel engine oils outperform CJ-4 oils.

  • Proposed Category 11

    Ready for PC-11?

    Learn about the impact of the American Petroleum Institute’s latest diesel engine oil specification change on you, your trucks and your business.

    The development of PC-11

    Get more of the story behind PC-11. Plus, learn how CK-4 and FA-4 oils could help your business.

    PC-11 FAQs

    There are a lot of questions surrounding the upcoming diesel engine oil specification change. Get more of the details behind PC-11 here.

Pride Transport's 400-vehicle fleet saved nearly $700,000 in total annual costs by switching to Mobil Delvac 1™ diesel engine oil.

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For 90 years, Mobil Delvac™ lubricants have been helping owner-operators and family-run businesses succeed.

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