Mobil Delvac Legend™ 20W-50 Standard Defense

Mobil commercial-vehicle-lube , United Kingdom

Multigrade Diesel Engine Oil.

Product Description

Mobil Delvac Legend 20W-50 Standard Defense is Multigrade Synthetic Blend diesel engine oil that provides proven engine protection of diesel engines operating in severe service applications. Mobil Delvac Legend 20W-50 Standard Defense is recommended by ExxonMobil for use in a wide range of heavy-duty applications and operating environments found in the trucking, construction and agricultural industries.


Features and Benefits

The key benefits of Mobil Delvac Legend 20W-50 Standard Defense

- Enhanced protection for two and four cycle diesel engines in the most demanding on-and off-highway service

- Prolonged engine life

- Outstanding control of high temperature deposits

- Excellent soot control

- Reduced engine scuffing and bore polishing due to enhanced high temperature/high shear viscosity retention

- Improved low temperature sludge control in stop and- go service

- Easy starting in cold weather conditions

- Extended TBN quality reserve for long term wear and deposit control

- Reduced oil consumption due to improved high temperature performance



Advantages and Potential Benefits

Thermal and oxidation stability

Controls sludge and build-up of deposits

Excellent detergency & dispersancy

Cleaner engines and longer engine life

Stay-in-grade shear stability

Helps reduce oil consumption and wear



Mobil Delvac Legend 20w-50 Standard Defense is recommended by ExxonMobil for use in the most severe applications of modern on- and off-highway diesel engines. It extends engine life between overhauls in high speed/high load operations and in pickup/delivery operation modes in both two-cycle and four-cycle engines. Applications include:


- Diesel-powered equipment from leading diesel engine manufacturers

- On-highway light and heavy-duty trucking

- Off-highway industries including: trucking, construction, quarrying, and agriculture

- Mixed fleets


Specifications and Approvals


This product is recommended for use in applications requiring:





Properties and Specifications




SAE 20W-50

Ash, Sulfated, mass%, ASTM D874


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


Pour Point, °C, ASTM D97


Density @ 15 C, kg/l, ASTM D4052


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


Viscosity Index, ASTM D2270


Total Base Number, mgKOH/g, ASTM D2896


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



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.


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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
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