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Mobil Delvac MX 15W-40 

Mobil Delvac™ MX 15W-40

Mobil Delvac MX 15W-40 is an extra high performance diesel engine oil that provides excellent lubrication of today's diesel engines promoting extended engine life. As a result, this product meets or exceeds the specifications of virtually all major European and American engine manufacturers. This extra high performance has been proven in the field in a wide variety of industries, applications, and mixed fleets.

The advanced chemistry of this product provides outstanding performance in both modern, demanding low-emission diesel engines and older diesel engines operating on low or high sulphur fuel. Mobil Delvac MX 15W-40 combines a blend of high performance base stocks with a progressive additive system to provide superior control of oil thickening due to soot build-up and high temperatures as well as outstanding resistance to oxidation, corrosion, and high temperature deposits.

High output, low emission diesel engines significantly increase the demands on engine lubricants. Tighter engine designs reduce oil consumption, resulting in less fresh oil make-up to replenish depleted additives. Top piston fire rings are located higher on the piston bringing the oil film closer to the combustion chamber where higher temperatures increase thermal stress on the lubricant. Increased fuel injector pressure and retarded timing improve fuel burn efficiency, but also increase engine temperatures and increase soot loads. Mobil Delvac MX 15W-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. The key benefits include:

High thermal and oxidation stabilityReduced sludge build-up, deposits and viscosity increase
TBN reservesDeposit control and acid neutralisation
Stay-in-grade shear stabilityWear protection and viscosity control
Advanced detergency/dispersancyCleaner engines and longer component life
Improved soot handlingImproved viscosity control and used oil pumpability
Excellent low temperature propertiesStart-up wear protection
Component compatibilityLonger gasket and seal life
Meets demanding specifications of key OEMsOne engine oil for mixed fleet operations

Recommended by ExxonMobil for use in:

  • Naturally aspirated and turbo-charged diesel powered equipment from leading Japanese, European, and American manufacturers
  • On-highway light and heavy-duty trucking
  • Off-highway industries including: construction, mining, quarrying, and agriculture
  • Mixed fleet applications

Mobil Delvac MX 15W-40 meets or exceeds the requirements of the following industry and builder specifications:

API CI-4/CH-4/CF/SL/SJ

ACEA E7

Caterpillar ECF-2

JASO DH-1

Cummins CES 20076, 20077, 20078

 

Mobil Delvac MX 15W-40 has the following builder approvals:

MB-Approval 228.3

Mack EO-M PLUS

Volvo VDS-3/VDS-2

 

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

Allison C-4

ACEA E5

API CG-4/CF-4

Cummins CES 20071, 20072

Detroit Diesel 7SE 270 (4-Stroke Cycle)

MAN M3275-1

SAE Grade15W-40
Viscosity, ASTM D 445 
cSt @ 40ºC117
cSt @ 100ºC15.5
Viscosity Index, ASTM D 2270140
Sulfated Ash, wt%, ASTM D 874  1.3
Total Base # , mg KOH/g, ASTM D 289612
Pour Point, ºC, ASTM D 97-33
Flash Point, ºC, ASTM D 92230
Density @ 15ºC kg/l, ASTM D 40520.88