MOBIL Delvac Engine Oils

Heavy-duty diesel engine oils that provide excellent protection in both new diesel engines and older models.

Mobil Delvac 1™ ESP

Delivers extended drain capability, fuel economy potential and exceptional low-temperature performance.

Mobil Delvac 1™ Advanced Fuel Economy

Uses cutting-edge technology to deliver exceptional performance, enhanced protection and fuel economy potential in challenging conditions.

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.

Mobil Delvac™ Extreme FE

Provides extended drain capability and meets or exceeds the API FA-4 specification for fuel-efficient engine oils.

Premium synthetic and synthetic blend diesel engine oils provide excellent protection and long drain capability in modern diesel engines. Mobil Delvac™ 1300 Super premium synthetic blend and Mobil Delvac™ Super FE synthetic blend, heavy-duty diesel engine oils are recommended by various engine builders for use in many high-performance diesel engines.

Mobil Delvac™ 1300 Super

Features a boosted formulation that meets or exceeds the API CK-4 specification and provides excellent engine protection – even in extreme conditions.

Mobil Delvac™ Super FE

Provides extended drain capability and meets or exceeds the API FA-4 specification for fuel-efficient engine oils.

Synthetic blend and conventional engine oils can deliver protection for high-performance diesel applications and older, naturally-aspirated engine designs. Mobil Delvac™ synthetic blends and premium conventional engine oils provide outstanding high-temperature performance, superior oxidation stability, and excellent soot and viscosity control.

Mobil Delvac™ HDEO

Designed to meet warranty requirements for high-speed, four-stroke heavy duty diesel engines, delivering an average up to 30% more wear protection versus CK-4 requirements.

Mobil Delvac™ Modern CNG/LNG

Formulated specifically for spark-ignited, CNG/LNG-fueled stoichiometric and lean-burn engines.

Mobil Delvac™ MX F2

Helps prolong engine life in severe on- and off-highway applications.