Mobil Delvac MX™ F2

High-performance diesel engine oil

Mobil Delvac MX F2 is a diesel engine oil that helps extend engine life in on- and off-highway applications. Mobil Delvac MX F2 engine oil meets or exceeds the API CI-4 PLUS service category.

Mobil Delvac MX F2 engine oil also meets or exceeds the API SL specification for gasoline engines and mixed fleets.

It is recommended by ExxonMobil for use in:

  • High-performance diesel applications, such as pre-2007 turbocharged, low-emission engine designs, including those featuring exhaust gas recirculation (EGR) technology that require API CI-4 PLUS
  • 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, Daihatsu and Yanmar
  • High-performance gasoline engines and mixed fleet operators
  • Diesel-powered equipment from American and Japanese original equipment manufacturers
  • On-highway heavy-duty trucking and off-highway, including construction, mining, quarrying and agriculture

The outstanding performance reserve of Mobil Delvac MX F2 engine oil is the result of extensive cooperative development work with major original equipment manufacturers (OEMs) and advanced additive chemistry with patented Trimer technology. These enhancements assure excellent control of oil thickening due to soot buildup and exposure to higher temperatures, and provide outstanding resistance to oxidation, corrosion, wear and high-temperature deposits.

Features and benefits

  • Outstanding thermal and oxidation stability
  • Reduced low-temperature sludge buildup and high-temperature deposits
  • Extended TBN reserves
  • Improved soot handling and extended drain intervals
  • Stay-in-grade shear stability
  • Reduced oil consumption and wear protection
  • Maintains viscosity in severe, high-temperature service
  • Excellent low-temperature pumpability
  • Easier engine startup and reduced wear
  • Superb resistance to corrosion
  • Longer life of critical wear surfaces

Specifications, approvals and technical details

Specifications and approvals  

Mobil Delvac MX F2 15W-40 engine oil meets or exceeds the following industry and builder specifications:

  • API CI-4 PLUS, CI-4, CH-4 / SL, SJ
  • Caterpillar ECF-2
  • Cummins CES 20078, 20077, 20076

Mobil Delvac MX F2 15W-40 engine oil is approved by the following OEMs:

  • Volvo VDS-3
  • Renault Trucks RLD-2
  • Detroit Fluids Specification 93K214

Mobil Delvac MX F2 15W-40 engine oil is recommended by ExxonMobil for use in applications requiring:

  • API CG-4/ CF-4/ CF
  • ACEA E5
  • Volvo VDS-2
  • Mack EO-M
  • MAN M 3275-1
  • Cummins CES 20072, 20071
  • Detroit 7SE 270 (4-Stroke Cycle)

Technical details  

SAE Grade


cSt @ 40ºC


cSt @ 100ºC


CCS, cP, ASTM D 5293

6,000 @ -20ºC

MRV, cP, ASTM D 4684

29,000 @ -25°C

HTHS @ 150ºC, cP, ASTM D4683


Viscosity Index, ASTM D 2270


Sulfated Ash, wt%, ASTM D 874


Total Base #, 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


View product data sheet for Mobil Delvac MX™ F2 15W-40 engine oil.

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