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:

Features 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

Grade SAE 10W-40
Ash, Sulfated, mass%, ASTM D874 1.15
Flash Point, °C, ASTM D92 210
Kinematic Viscosity @ 100 C, mm2/s, ASTM D445 14.8
Kinematic Viscosity @ 40 C, mm2/s, ASTM D445 100
Pour Point, °C, ASTM D97 -36
Viscosity Index, ASTM D2270 154
Density @ 15 C, g/ml, ASTM D1298 0.867

Health and safety

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


It cannot be guaranteed that the product information given above is up to date. For the latest version of the Product Data Sheet we refer to the product library of ExxonMobil.