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Mobilgard™ HSD 20W50 CI-4
Mobilgard HSD 20W-50 CI-4 by ExxonMobil is an extra high performance, multi-grade engine oil specifically formulated to severe service high-speed diesel engines in marine applications. Its advanced chemistry provides outstanding performance in both modern, demanding low-emission diesel engines and older diesel engines operating on low or high sulphur distillate fuel. Mobilgard HSD 20W-50 CI-4 helps:
- Superb resistance to corrosion
- Excellent low-temperature pumpability
- Stay-in-grade shear stability
- Outstanding thermal and oxidation stability
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Data Sheet
Product data sheet (PDS) 
Safety data sheet (SDS) Product Information
Mobilgard™ HSD 20W50 CI-4 performance profile
Technical resources
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ExxonMobil takes pride in producing high quality lubricants to meet your lubrication needs. To safeguard your equipment against potential damage from counterfeits, it is important to ensure you are ...
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In order to ensure that lubricants and greases can deliver their maximum performance they must be stored and handled correctly, both shore-side and on-board vessels.
Features and Benefits
| Features |
| Outstanding thermal and oxidation stability |
| Excellent wear protection |
|
High Viscosity Index |
| Increased high temp/high shear performance |
| Outstanding TBN retention |
| Excellent water tolerance and separation capability |
| Excellent low temperature properties |
Specifications and Approvals
|
This product has the following approvals: |
|
|
MB-Approval 228.3 |
✓ |
|
This product meets or exceeds the requirements of: |
|
|
API CI-4 |
✓ |
Applications
Mobilgard HSD 20W-50 CI-4 is designed to provide outstanding performance in some of the most severe service marine applications of high-speed diesel engines, such as Mercedes Benz.
Typical Properties
| Mobilgard HSD 20W50 CI-4 | |
| SAE Grade | 20W-50 |
| Viscosity, ASTM D 445 | |
| cSt @ 40ºC | 163 |
| cSt @ 100ºC | 18.9 |
| Viscosity Index, ASTM D 2270 | 132 |
| Sulphated Ash, wt%, ASTM D 874 | 1.1 |
| Total Base # , mg KOH/g, ASTM D 2896 | 10.2 |
| Pour Point, ºC, ASTM D 97 | -26 |
| Flash Point, ºC, ASTM D 92 | 235 |
| Density @ 15ºC kg/l, ASTM D 4052 | 0.88 |
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