Mobil Delvac 1300 Super 10W-30 and 15W-40 are extra high performance diesel engine oils that help extend engine life in the most severe on and off highway applications.

Mobil Delvac 1630, 1640, and 1650 are high performance monograde diesel engine oils formulated from advanced technology base oils and a balanced additive system.

Mobil Delvac 1 5W-40 is a fully synthetic supreme performance heavy duty diesel engine oil that helps extend engine life while providing long drain capability and fuel economy for modern diesel engines operating in severe applications.