Mobil Delvac Modern™ 20W-50 Super Defense

modern 20w 50 super defense

Synthetic Technology Commercial Vehicle Engine Oil

Mobil Delvac Modern™ 20W-50 Super Defense is an extra high performance diesel engine oil that provides excellent lubrication of today's diesel engines promoting long engine life. It is recommended by ExxonMobil for use in a wide variety of industries, applications, and mixed fleets.

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 Modern 20W-50 Super Defense 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.

This product is fully compatible with Mobil Delvac MX 20W-50 and can be used as a replacement of same.

Mobil Delvac Modern™ 20W-50 Super Defense

Synthetic Technology Commercial Vehicle Engine Oil

Features and Benefits

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 Modern 20W-50 Super Defense is formulated from high performance base oils and a balanced additive system to provide optimum engine performance in modern diesel engines as well as older models. The key benefits include:



Advantages and Potential Benefits

High thermal and oxidation stability

Reduced sludge build-up, deposits and viscosity increase

TBN reserves

Deposit control and acid neutralisation

Stay-in-grade shear stability

Wear protection and viscosity control

High detergency/dispersancy

Clean engines and long component life

Improved soot handling

Improved viscosity control and used oil pumpability

Excellent low temperature properties

Start-up wear protection

Component compatibility

Long gasket and seal life



Recommended by ExxonMobil for use in:

•  Naturally aspirated and turbo-charged diesel powered equipment.

•  On-highway light and heavy-duty trucking.

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


Specifications and Approvals


This product has the following approvals:

MB-Approval 228.3


This product meets or exceeds the requirements of:



Properties and Specifications




SAE 20W-50

Ash, Sulfated, mass%, ASTM D874


Density @ 15 C, kg/m3, ASTM D4052


Viscosity Index, ASTM D2270


Total Base Number, mgKOH/g, ASTM D2896


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


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


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


Pour Point, °C, ASTM D97



Health and safety

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