Mobil Delvac 1™ ESP 0W-40

Advanced full synthetic, high-performance diesel engine oils

Mobil Delvac 1 ESP 0W 40 Product

Mobil Delvac 1™ ESP 0W-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 0W-40 diesel engine oil is formulated to deliver exceptional performance in newer and older engine designs, including those with emission control systems. Its 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 emission system protection in a variety of severe conditions

Mobil Delvac 1™ ESP 0W-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
  • Heavy-duty diesel engines using low-sulfur diesel fuels and many biodiesel fuel formulations
  • Naturally aspirated and turbocharged, diesel-powered equipment
  • Virtually all diesel-powered equipment from American and European builders
  • Refrigeration units

Features and Benefits

Mobil Delvac 1™ ESP 0W-40 is an outstanding lubricant solution for modern and latest engine technology equipped with emission after-treatment devices. It was developed by ExxonMobil to provide exceptional wear protection in severe applications and over a broad range of temperatures. The unique formulation offers the capability to ensure proper oil flow rate at very low temperatures down to – 45°C but also provides robust oil film strength when exposed to thermal stress due to modern, high power output engine operation and high vehicle load. This feature, in combination with the sophisticated additive system, ensures exceptional engine wear performance and supports long engine life. The low ash formulation protects at the same time all exhaust after-treatment parts required to meet emissions regulations while unsurpassed oxidation stability² supports longer oil drain intervals and therefore reduced maintenance cost and vehicle downtime.


The key benefits of Mobil Delvac 1™ ESP 0W-40 include:


Advantages and Potential Benefits

Excellent low temperature pumpability

Reliable engine start and wear protection at low temperatures

Step out wear protection

Reduced engine wear to promote long engine life

Unsurpassed thermal and oxidation stability²

Long oil drain intervals and prevention of deposits

Superb resistance to corrosion

Protection of critical engine surfaces in humid environments


Applications 1

      Recommended by ExxonMobil for use in:

  • Most engine generations up to latest and most sophisticated high performance diesel engines with turbo-charger, direct injection and low emission designs, featuring EGR, DPF or exhaust catalyst technology
  • On-highway heavy duty trucking and off-highway including: construction, mining, quarrying, and agriculture
  • 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
  • Modern marine high-speed diesel engines, including Caterpillar, Cummins, Volvo and others.
  • High performance gasoline engines and mixed fleet operators
  • Diesel-powered equipment from many global OEMs

      1 Please refer to the owners handbook for OEM application requirements and oil drain intervals for your vehicle or equipment.

    ² Based on PC-11 industry test data.


Specifications and Approvals

Mobil Delvac 1™ ESP 0W-40 meets or exceeds the requirements of the following industry and builder specifications:

API CK-4, CJ-4, CI-4 PLUS, CI-4, CH-4, SN, SM

Caterpillar ECF-3

Cummins CES 20086, 20081

Ford WSS-M2C171-F1


Mobil Delvac 1™ ESP 0W-40 has the following builder approvals:

Mack EOS-4.5

MTU Category 2.1

Renault Trucks RLD-4

Volvo VDS-4.5


Typical Properties

Mobil Delvac 1™ ESP 0W-40 meets

SAE Grade


Viscosity, ASTM D 445


cSt @ 40ºC


cSt @ 100ºC


CCS, cP, ASTM D 5293

5990 @ -35ºC

MRV, cP, ASTM D 4684

21,200 @ -40°C

HTHS @ 150ºC, cP, ASTM D4683


Viscosity Index, ASTM D 2270


Sulfated Ash, wt%, ASTM D 874


Total Base Number, mg KOH/g, ASTM D 2896


Pour Point, ºC, ASTM D 97


Flash Point, ºC, ASTM D 92


Density @ 15ºC kg/l, ASTM D 4052



Health and Safety

Based on available information, this product is not expected to produce adverse effects on health when used for the intended application and the recommendations provided in the Material Safety Data Sheet (MSDS) are followed. MSDSs are available upon request through your sales contact office, or via the Internet. This product should not be used for purposes other than its intended use. If disposing of used product, take care to protect the environment.

  • Heavy-duty-lubricant-faq

    Heavy-duty lubricants FAQs

    Read our Mobil Delvac™ and Mobil Delvac 1™ product-related frequently asked questions.

    Learn more
  • Mobil Delvac Distributor Locator on Tablet

    Heavy-duty lubricant distributor locator

    Use our locator tool to find out where to buy Mobil Delvac™ products in your area.

    Find now