Mobil Delvac MX™ Extra 10W-40

Mobil Commercial-Vehicle-Lube , Norway

Extra High Performance Diesel Engine Oil

Product Description

Mobil Delvac MX Extra 10W-40 is a heavy-duty engine oil that provides excellent lubrication of today's diesel and gasoline engines operating in severe applications to keep engines clean and promote long engine life. As a result, this product is recommended by ExxonMobil for European, Japanese and American engines. Mobil Delvac MX Extra 10W-40 is engineered with a blend of advanced technology base stocks and additive system to provide a strong foundation for oxidation resistance, soot handling, and wear control supplemented with excellent piston deposit protection and reduced sludge formation to help provide long engine life. The viscosity and multigrade characteristics provide excellent cold cranking and oil pumpability at low temperatures.


Features and Benefits

High output, low emission engines significantly increase demands on engine lubricants. Tighter engine design, use of inter-coolers, and turbochargers increase thermal stresses on the lubricant. Low emission engine technologies such as higher fuel injection pressure and retarded timing require improved oil performance in areas such as oxidation stability, soot dispersancy, and volatility. Mobil Delvac MX Extra 10W-40 is formulated from high performance base oils and a superior balanced additive system to provide optimum engine performance in modern diesel and gasoline engines as well as older models. Key benefits include:



Advantages and Potential Benefits

Increased thermal and oxidation stability

Reduced sludge build-up, deposits, and long oil and engine life

Enhanced wear protection

Long component and engine life

Improved corrosion protection

Reduced bearing wear to assist with long drain intervals in modern diesel engines

Advanced piston deposit control

Keeps engines clean with reduced maintenance costs and long engine life

Advanced soot handling to control viscosity increase, sludge build up, and filter pressure

Enhanced engine protection for long engine life

Enhanced low temperature pumpability

Faster start up with reduced wear operating in low temperature climates



Recommended by ExxonMobil for use in:

     •  Naturally aspirated and turbo-charged diesel powered engines built by European, Japanese, and American manufacturers

     •  On-highway light and heavy-duty trucking including mixed fleets with gasoline engines and cars

     •  Off-highway industries including: mining, construction, quarrying, and agriculture


Specifications and Approvals

This product has the following approvals:


MAN M 3275-1

MB-Approval 228.3

MTU Oil Category 2



Mack EO-M Plus

Mack EO-N


This product is recommended for use in applications requiring:






Cummins CES 20072

Cummins CES 20071

Detroit 7SE 270 (4-STROKE CYCLE)




This product meets or exceeds the requirements of:






Cummins CES 20077

Cummins CES 20076

Cummins CES 20078



Properties and Specifications




SAE 10W-40

Ash, Sulfated, mass%, ASTM D874


Flash Point, °C, ASTM D92


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


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


Pour Point, °C, ASTM D97


Viscosity Index, ASTM D2270


Density @ 15 C, g/ml, ASTM D1298



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.


Mobil Oil AS
Drammensveien 149, Postboks 350 Skøyen
N-0213 OSLO

(+47) 22 66 30 30

Typical Properties are typical of those obtained with normal production tolerance and do not constitute a specification.  Variations that do not affect product performance are to be expected during normal manufacture and at different blending locations.  The information contained herein is subject to change without notice. All products may not be available locally. For more information, contact your local ExxonMobil contact or visit
ExxonMobil is comprised of numerous affiliates and subsidiaries, many with names that include Esso, Mobil, or ExxonMobil. Nothing in this document is intended to override or supersede the corporate separateness of local entities. Responsibility for local action and accountability remains with the local ExxonMobil-affiliate entities.