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Mobil 1™ Formula M 5W-40

Mobil 1™ Formula M

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For vehicles requiring a 5W-40 viscosity and specific Mercedes-Benz approvals

Mobil 1™ Formula M 5W-40 is an advanced performance synthetic engine oil engineered to help prolong the life of both diesel- and gasoline-powered automobiles that require an oil that is approved against the Mercedes Benz MB-229.3 and 229.5 specifications.

Mobil 1 Formula M 5W-40 oil is made with a proprietary blend of high-performance components and synthetic base stocks.

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.

We stand behind our products. Read our Mobil 1 limited warranty.

Features and benefits

Active cleaning agents

  • Help reduce deposits and sludge buildup to enable long and clean engine life.

Outstanding thermal and oxidation stability

  • Helps reduce oil aging, allowing extended drain interval protection.

Low oil consumption

  • Less hydrocarbon pollution and less necessity to top up.

Excellent low-temperature capabilities

  • Offers quick cold-weather starting, fast protection and helps extend engine life.

High viscosity index

  • Excellent overall lubrication and wear protection for all driving styles and conditions, from mild to severe.

Available viscosity grades

What does this viscosity mean?
  • 5W-40

    Specifications and approvals

    Mobil 1 Formula M 5W-40 has the following builder approvals:

    • MB-Approval 229.3
    • MB-Approval 229.5

    Technical details

    SAE Grade
    Viscosity @ 100ºC, cSt (ASTM D445)
    Viscosity @ 40ºC, cSt (ASTM D445)
    Viscosity Index
    Sulfated Ash, wt% (ASTM D874)
    HTHS Viscosity, mPa•s @ 150 ºC (ASTM D4683)
    Flash Point, ºC (ASTM D92)
    Total Base Number, mg KOH/g (ASTM D2896)
    MRV @ -35 ºC, cP (ASTM D4684)
    Density @ 15ºC kg/l (ASTM D4052)

    View product data sheet for Mobil 1 Formula M 5W-40

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