Mobilgard™ M50 diesel engine oil
Mobilgard™ M50 extra-high-performance, premium 50 TBN marine engine oil is designed for use in the most severe residual-fuelled, medium-speed diesel applications found in marine and stationary power industries.
Formulated using the latest additive detergent technology, Mobilgard M50 diesel engine oil provides the following benefits:
- Reduced deposits in piston undercrown and ring belt areas
- Extended life of critical wear surfaces
- Clean camshaft and crankcase spaces
- Protects wear surfaces from water and acidic corrosion
- Reduced sludge formation, longer oil life, cleaner engines
- Reduced lubricant consumption
- Combats fuel and combustion related corrosion and deposits
Related product
Mobilgard™ M30 Series diesel engine oils
Mobilgard™ M30 Series diesel engine oils are recommended for use in medium-speed engines in deep-sea, coastal and river vessels operating on heavy fuel oil (HFO).
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Enhanced Wear Protection
Corrosion protection
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Mobilgard™ M50 reduces oil consumption and extends oil change intervals
Princess Cruises was able to extend oil change intervals and save over 80,000 litres of oil, reducing operating expenses across seven ships with Mobilgard™ M50 engine oil. prolonging engine life |
Features and Benefits
When used as recommended, Mobilgard M50 diesel engine oil provides the following benefits:
Features | Advantages and Potential Benefits |
---|---|
Excellent thermal and oxidation stability | Reduced deposits in piston undercrown and ring belt areas |
Improved anti-wear properties | Extends the life of critical wear surfaces |
Advanced detergency/dispersancy | Clean camshaft and crankcase spaces |
Outstanding rust and corrosion properties | Protects wear surfaces from water and acidic corrosion |
High Residual Fuel Compatibility | Reduced sludge formation, longer oil life, cleaner engines |
Low volatility base stocks | Reduced lubricant consumption |
Excellent TBN Reserve and Retention | Combats fuel/combustion related corrosion and deposits |
Applications
Mobilgard M50 oil is designed to meet the needs of engines operating on heavy fuel. It is recommended for use in the latest model medium speed diesel engines and is especially beneficial in engines having low crankcase oil consumption or operating with low cylinder liner temperatures. In these engines, oil life and drain intervals have been significantly reduced when using conventional lube oils due to severe TBN depletion resulting from very low lube oil consumption. Relatively high alkalinity reserves in this oil provide superior protection in neutralising the strong acids resulting from the use of high sulphur fuels that find access to the crankcase to promote oil degradation and ring, cylinder, and bearing corrosion.
Mobilgard M50 is also recommended for topping-up existing oil charges with a low TBN value to raise them to an acceptable value.
Typical Properties
SAE Grade | 40 |
---|---|
Specific Gravity at 15ºC | 0.922 |
Flash Point, ºC, ASTM D 92 | 228 |
Pour Point, ºC, ASTM D 97 | -6 |
Viscosity, ASTM D 445 |
|
cSt, at 100ºC | 14 |
TBN, mg KOH/g, ASTM D 2896 | 50 |
Sulphated Ash, wt%, ASTM D 874 | 6.5 |
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Mobilgard™ M50 reduces oil consumption and extends oil change intervals
Princess Cruises was able to extend oil change intervals and save over 80,000 litres of oil, reducing operating expenses across seven ships with Mobilgard™ M50 engine oil.
Learn more -
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Mobil Serv℠ Lubricant Analysis
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