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Mobil 1 Turbo Diesel

Mobil 1™ Turbo Diesel Truck

Mobil 1™ Turbo Diesel 5W-40 is rated 4.5 out of 5 by 13.
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Helps extend engine life for modern diesel engines even in severe applications

Mobil 1 Turbo Diesel Truck is a full synthetic heavy-duty performance diesel engine oil that can help extend engine life while providing long drain capabilities.

Mobil 1 Turbo Diesel Truck oil is engineered with state-of-the-art technology to help deliver exceptional performance in modern low emission engines. It meets or exceeds demanding specifications of major truck manufacturers, which means a single engine oil formulation can be used for mixed fleet operations.

This advanced full synthetic diesel oil formula is recommended for use in a wide range of both light- and heavy-duty applications, from turbo diesel pickup trucks to severe on- and off-highway heavy-load conditions.

Please reference our Mobil 1™ Product Guide for a quick look at specifications including zinc and phosphorus, as well as manufacturer approvals for Mobil 1 motor oils.

Always follow oil change intervals recommended in your owner’s manual. With the high-performance reserves of our Mobil 1 motor oils, you can have the confidence to go the full mileage or time frame recommended by the vehicle manufacturer. Mobil 1 motor oils are especially suitable for the latest vehicles that allow you to extend or vary oil drain intervals. We stand behind our products; please read our Mobil 1 limited warranty

Features and benefits

Outstanding thermal and oxidation stability

  • Helps reduce low-temperature sludge buildup and high-temperature deposits

Enhanced film strength at high temperatures

  • Helps reduce engine scuffing and bore polishing

Inherent stay-in-grade shear stability

  • Supports wear protection and reduced oil consumption
  • Helps maintain viscosity in severe, high-temperature service

Low volatility

  • Helps to control oil consumption

Long drain capability

  • Helps to increase operating efficiency and lower overall cost

Exceptional low-temperature pumpability

  • Supports easier engine startup
  • Helps reduce wear

Outstanding resistance to corrosion

  • Helps extend life of critical wear surfaces

Helps promotes component longevity

  • Supports long gasket and seal life
  • Helps extend service intervals

Enhanced TBN quality reserve

  • Helps to deposit control and extended drain capability

  • 5W-40

    Specifications and approvals

    Mobil 1 Turbo Diesel Truck 5W-40 synthetic motor oil meets or exceeds the requirements of the following industry and builder specifications:

    • API CK-4, CJ-4, CI-4 PLUS, CG-4, CI-4, CH-4, SN, SM, SL
    • ACEA E9-12, E7
    • Caterpillar ECF-3

    Technical details

    SAE Grade 5W-40
    Viscosity, cSt (ASTM D445)
    @ 40ºC 97.9
    @ 100ºC 14.5
    Viscosity Index 153
    Phosporous (ASTM D4951) 0.11
    HTHS Viscosity, mPa•s @ 150ºC (ASTM D4683)     3.8
    Sulfated Ash, wt% (ASTM D874) 0.95
    Total Base #, mg KOH/g (ASTM D2896) 10.7
    Flash Point, ºC (ASTM D92) 215
    Density @ 15.6ºC g/ml (ASTM D4052) 0.85

    View product data sheet for Mobil 1™ Turbo Diesel Truck 5W-40

Show reviews
Rated 5 out of 5 by from Why would you use anything else? I have been using it in a 2009 GMC with a DuraMax. I tow a winterized 5th wheel rec trailer which is heavy and a 5th wheel 16 foot dump trailer when not on holidays. I have driven the Highway through **** and the grapevine at 30 deg C at posted speeds which caused the cooling fans to come on and the temp to rise. I now have 169,000 km and change oil at factory recommended times. The engine has not missed a beat and started easily in -30 deg C with out being plugged in. I have been impressed with how well the oil flows at some of our cold temp and how well the oil sticks at the high temps.
Date published: 2015-04-08
Rated 5 out of 5 by from Beneficial in 1985 Mercedes 300D Turbo Diesel Quiets valve train noise better than any other brand I have tried. This product keeps cam follower noise completely subdued all the way to the next oil change. With all the other brands I have tried some valve train noise begins to be heard a few thousand miles after oil change and by the time the oil change mileage is reached the valve train noise is quite conspicuous. This would suggest that this oil can maintain excellent shear strength throughout its useful life. No small comfort here when I consider all the other crazy expensive parts this stuff may be keeping out of metal to metal contact .
Date published: 2015-08-30
Rated 5 out of 5 by from Run your engine FOREVER! I own a 99 VW Golf . Ive repaired or replaced near every major part on this car but the engine which has never been touched. Only Mobil Delvac1 or Turbo Diesel 5w-40 used every 6-7000 miles since it came off warranty. Still get 50+ highway MPG and the only oil it burns is the diesel its supposed to. The car now has 432,000 mile on it! I attribute that to your oil as I know other TDI owners who use other brands that haven't made half that distance before rebuild or junk yard. Great stuff.
Date published: 2015-11-12
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  • clientName_exxonmobil
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