Skip to main content
Mobil Delvac™ 1 ESP

Mobil Delvac 1™ ESP

Advanced full synthetic, high-performance diesel engine oil

Get more information about PC-11 product changes.

Mobil Delvac 1 ESP 5W-40 is an advanced full synthetic, high-performance diesel engine oil that delivers long drain capability and fuel economy potential* while helping to extend engine life for modern diesel engines operating in severe conditions.

Mobil Delvac 1 ESP 5W-40 diesel engine oil is formulated to deliver exceptional performance in newer and older engine designs, including those with emission control systems. Its proprietary formulation meets or exceeds the requirements of original equipment manufacturers (OEMs) with state-of-the-art technology that provides:

  • Outstanding performance at extreme temperatures
  • Our best protection for drivers with extended oil drain intervals
  • Enhanced emissions systems protection in a variety of severe conditions

Mobil Delvac 1 ESP 5W-40 diesel engine oil is recommended by ExxonMobil for use in:

  • Most engine generations up to the latest and most sophisticated high-performance diesel engines with turbocharger, direct-injection and low-emission designs
  • On-highway applications operating in both high-speed/high-load and short-haul pick-up/delivery
  • Off-highway applications operating in severe low-speed/heavy-load conditions
  • High-performance gasoline engines and mixed fleets
  • Virtually all diesel-powered equipment from American and European builders
  • Refrigeration units

Features and benefits

  • Formulated with advanced synthetic base stocks to help improve fuel economy*
  • Excellent oxidation performance that helps reduce engine deposits to keep engines running reliably
  • Excellent anti-wear and anti-scuff properties help control wear in heavy-duty operation to help promote long engine life
  • Excellent low-temperature performance allows for increased oil flow to critical bearing surfaces at startup and controls low-temperature sludge formation in stop-and-go service
  • Stay-in-grade shear stability maintains viscosity in severe, high-temperature service, provides wear protection and helps reduce oil consumption
  • Outstanding protection against oil thickening and degradation contributes to long drain interval capability, helping to reduce the number of oil changes and oil disposal needs

*Compared to an SAE 15W-40 engine oil. Actual savings are dependent on vehicle/engine type, outside temperature, driving conditions and your current engine oil viscosity.

  • 5W-40

    Specifications and approvals

    Mobil Delvac 1 ESP 5W-40 engine oil meets or exceeds the requirements of:

    • ACEA E9, E7
    • API CK-4, CJ-4, CI-4 PLUS, CI-4, CH-4, SN, SM
    • Caterpillar ECF-3
    • Cummins CES 20086, 20081
    • JASO DH-2

    Mobil Delvac 1 ESP 5W-40 engine oil is approved by the following OEMs:

    • Detroit Fluids Specification 93K222, 93K218
    • Mack EOS-4.5
    • MTU Oil Category 2.1
    • Renault Trucks RLD-4
    • Volvo VDS-4.5

    Technical details

    SAE Grade 5W-40
    Viscosity, ASTM D 445
    cSt @ 40ºC 84
    cSt @ 100ºC 13.8
    CCS, cP, ASTM D 5293 6,510 @ -30ºC
    MRV, cP, ASTM D 4684 16,800 @ -35ºC
    HTHS @ 150ºC, cP, ASTM D 4683 3.8
    Viscosity Index, ASTM D 2270 150
    Sulfated Ash, wt%, ASTM D 874 1
    Total Base #, mg KOH/g, ASTM D 2896   12
    Pour Point, ºC, ASTM D 97 -30ºC
    Flash Point, ºC, ASTM D 92 233
    Density @ 15ºC kg/l, ASTM D 4052 0.853

    View product data sheet for Mobil Delvac 1™ ESP 5W-40 engine oil



Show reviews

Related products

Mobil 1™ Turbo Diesel Truck

Can help promote long engine life for modern diesel engines


Mobil Delvac™ 1300 Super

Helps extend diesel engine life for the most severe on- and off-highway applications

More Mobil™ resources

Person using global distributor locator tool

Find a distributor near you

Use our distributor locator tool to find out where to buy Mobil Delvac™ products near you.

Mobil Delvac™ FAQs

Mobil Delvac™ FAQs

Find answers to your product questions and more in our FAQs.

Mobil 1 auto expert answering questions

Ask our experts

Have a question? We have answers. Submit your questions to our experts.

Energy lives here