Mobil Delvac MX™ F3 15W-40

Mobil commercial-vehicle-lube , Honduras

High Performance Diesel Engine Oil

Product Description

Mobil Delvac MX™ F3 15W-40 is a high performance diesel engine oil that helps extend engine life in severe on and off highway applications. The advanced chemistry of these products delivers exceptional performance in both modern, high-output engines including those with Exhaust Gas Recirculation (EGR), as well as older engines operating on either low or high sulfur fuels. As a result, Mobil Delvac MX F3 15W-40 meets or exceeds the API CI-4 PLUS service category.



Mobil Delvac MX F3 15W-40 is recommended by ExxonMobil for use in a wide range of heavy duty applications and operating environments found in the trucking, mining, construction, quarrying, marine and agricultural industries. These products will provide outstanding protection in the most demanding diesel engines of Cummins and others requiring an API CI-4 Plus service category diesel engine oil. Mobil Delvac MX F3 15W-40 also meets or exceeds the API SL specification for gasoline engines and mixed fleets.



The outstanding performance reserve of Mobil Delvac MX F3 15W-40 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 build-up and exposure to higher temperatures and provide outstanding resistance to oxidation, corrosion, wear, and high temperature deposits.


Features and Benefits


Advantages and Potential Benefits

Outstanding thermal and oxidation stability

Reduced low temperature sludge build-up 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 start-up and reduced wear

Superb resistance to corrosion

Longer life of critical wear surfaces



Recommended by ExxonMobil for use in:


     •  High performance diesel applications including pre-2007 turbo-charged, low emission engines designs, including those featuring EGR technology


     •  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: Cummins


     •  High performance gasoline engines and mixed fleet operators


     •  Diesel-powered equipment from Cummins


     •  On highway heavy duty trucking and off highway including: construction, mining, quarrying, and agriculture


Specifications and Approvals

This product has the following approvals:


Mack EO-N


Detroit Fluids Specification 93K214

MB-Approval 228.3


This product meets or exceeds the requirements of:

Cummins CES 20078


Caterpillar ECF-2


Properties and Specifications



SAE 15W-40

Kinematic Viscosity @ 100 C, mm2/s, ASTM D445


Kinematic Viscosity @ 40 C, mm2/s, ASTM D445


Density @ 15 C, g/ml, ASTM D1298


Pour Point, °C, ASTM D5950


Flash Point, Cleveland Open Cup, °C, ASTM D92


Total Base Number, mgKOH/g, ASTM D4739


Mini-Rotary Viscometer, Apparent Viscosity, -25 C, mPa.s, ASTM D4684


Hi-Temp Hi-Shear Viscosity @ 150 C 1x10(6) sec(-1), mPa.s, ASTM D4683


Cold-Cranking Simulator, Apparent Viscosity @ -20 C, mPa.s, ASTM D5293



Health and safety

Health and Safety recommendations for this product can be found on the Material Safety Data Sheet (MSDS) @

All trademarks used herein are trademarks or registered trademarks of Exxon Mobil Corporation or one of its subsidiaries unless indicated otherwise.