Synthetic engine oils provide advanced performance and protection, typically outperforming conventional diesel engine oils. Mobil Delvac™ Extreme and Mobil Delvac™ Extreme FE synthetic oils make it easy to choose the right synthetic oil for your vehicle’s needs.
Mobil Delvac™ Extreme
Features a boosted formulation that meets or exceeds the API CK-4 specification and provides excellent engine protection – even in extreme conditions.
10W-30 | 15W-40
Mobil Delvac™ Extreme FE
Provides extended drain capability and meets or exceeds the API FA-4 specification for fuel-efficient engine oils.
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Bumper to bumper product guide
It’s easy to find the right Mobil Delvac™ product for any fleet application. Explore our bumper-to-bumper product guide now.Explore now