Mobil 1™ Turbo Diesel Truck 5W-40

Helps extend engine life for modern diesel engines even in severe applications

Mobil 1™ Turbo Diesel Truck 5W-40

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

Mobil 1 Turbo Diesel Truck utilizes state-of-the-art technology to help deliver exceptional performance in modern low emission engines, including refrigerated units, as well as older, well-maintained engines. Mobil 1 Turbo Diesel Truck 5W-40 is recommended for use in a wide range of light-duty applications such as turbo diesel pick-up trucks, as well as, heavy-duty applications and operating environments found in the on-road transport and off-road mining, construction, and agricultural industries. Mobil 1 Turbo Diesel Truck is suitable for use in gasoline engines used in mixed fleets.

We stand behind our products; please read our Mobil 1 limited warranty.

Features and Benefits

Many modern, low emission diesel engines generate more soot and operate at higher temperatures than older engines. This significantly increases the need for supreme performance lubricants. Current tighter engine designs reduce oil consumption, resulting in less fresh oil makeup to replenish depleted additives. Top piston rings are located higher, bringing the oil film closer to the combustion chamber and exposing the lubricant to severe thermal stresses. Mobil 1 Turbo Diesel Truck 5W-40 helps to maintain outstanding performance at significantly higher temperatures than other high performance diesel engine oils. It is also fully compatible with conventional oils. The key potential benefits include:



Advantages and Potential Benefits

Meets or exceeds demanding specifications of a major OEM

One engine oil for mixed fleet operations

Outstanding thermal and oxidation stability

Helps to reduce low temperature sludge build-up and high temperature deposits

Enhanced film strength at high temperatures

Helps to reduce engine scuffing and bore polishing

Inherent stay-in-grade shear stability

Wear protection and reduced oil consumption; helps to maintain viscosity in severe, high temperature service

Advanced formulation and viscometrics

Aids fuel economy

Low volatility

Helps to control oil consumption

Exceptional low temperature pumpability

Easy engine start-up and helps to reduce wear

Enhanced TBN quality reserve

Helps to deposit control and extended drain capability

Outstanding resistance to corrosion

Helps to extend life of critical wear surfaces

Long drain capability

Helps to increase operating efficiency and lower overall cost

Component compatibility

Long gasket and seal life, helps to extend service intervals



Mobil 1 Turbo Diesel Truck 5W-40 is recommended by ExxonMobil for use in all super high performance diesel applications, including modern low emission engine designs with Exhaust Gas Recirculation (EGR). These applications include the following:


• On-highway engines operating in both high speed/high load and stop-and-go conditions

• Off-highway engines operating in severe low speed/heavy load conditions

• Virtually all diesel powered equipment from American, European, and Japanese equipment builders

• High performance gasoline engines and mixed fleets

• Refrigeration units


Specifications and Approvals

This product is recommended for use in applications requiring:



This product meets or exceeds the requirements of:







Caterpillar ECF-3






Properties and Specifications



SAE 5W-40

Kinematic Viscosity @ 100 C, mm2/s, ASTM D445


Kinematic Viscosity @ 40 C, mm2/s, ASTM D445


Density, 15.6C, g/cm3, ASTM D4052


Flash Point, Cleveland Open Cup, °C, ASTM D92


Pour Point, °C, ASTM D97



Health and safety

Health and Safety recommendations for this product can be found on the Material Safety Data Sheet (MSDS) @




One is for gasoline‐powered engines and the other is for diesel‐powered engines. Mobil 1 Turbo Diesel Truck   motor oil is designed for light‐duty diesel trucks that require an oil that meets or exceeds the latest industry and diesel engine builder requirements. Mobil 1 Truck & SUV  motor oil is designed for gasoline‐powered, light‐duty trucks and SUVs. This newly formulated product, with 10 percent more sludge‐fighting additive,* provides outstanding performance and protection in normal and more severe driving conditions, such as towing and hauling. Performance has been proven in a 120,000‐mile test, which included over 50,000 miles of simulated towing of a 5,000‐pound load.


*Compared to Mobil 1™ motor oil. Additive percentage may not correspond with percentage of engine protection benefits.


Oil change intervals can be as short as 3,000 miles or as long as 15,000 miles on some new cars. We recommend that you follow the oil and filter change frequencies shown in your owner's manual, especially during the warranty period. With the high‐performance reserves of Mobil 1, you can have the confidence to go the full mileage or time frame recommended by the vehicle manufacturer. Mobil 1 is especially suitable for the latest vehicles with extended drain intervals or vehicles with oil monitoring systems that vary oil drain intervals. To fulfill the requirements of the Mobil 1 limited warranty, Mobil 1 motor oil must be changed at least every 10,000 miles or your vehicle’s OEM recommended oil change interval, whichever is longer.

With the exception of the Mazda rotary engine (Mazda does not recommend any synthetic oils), Mobil 1 will not void new‐car warranties where an American Petroleum Institute (API) certified oil is recommended. Mobil 1 meets or exceeds API and International Lubricant Standardization and Approval Committee (ILSAC) motor oil service requirements of all new‐car manufacturers, both import and domestic. If in doubt, always check your vehicle owner's manual or contact the vehicle manufacturer.