Description
Features and Benefits
Modern high output, high speed, lean-burn diesel type engines using natural gas fuels place severe demands on engine lubricants. Mobil Gas Engine Oil 15W-40 is formulated to strict standards to deliver reliable engine performance in modern diesel type engines using natural gas as the primary fuel. The key benefits include:
• High thermal and oxidation stability helps control sludge build-up and deposits
• Reserve TBN neutralizes oxy acids and nitrates to reduce deposits
• Shear stability reduces oil consumption and provides bearing wear and cylinder liner scuff protection
• Effective detergency/dispersancy keeps engines cleaner
• Low levels of Zinc and Phosphorous help extend catalytic converter life
Applications
Recommended by ExxonMobil for use in:
• Spark ignited CNG and LNG-fueled lean-burn engines
• Dual fuel engines using diesel fuel for start-up and 15% diesel pilot fuel with CNG/LNG
• On-highway light and heavy-duty trucks and busses
Properties and Specifications
| Property | |
| Grade | SAE 15W-40 |
| Ash, Sulfated, mass%, ASTM D874 | 0.5 |
| Density @ 15.6 C, g/ml, ASTM D4052 | 0.866 |
| Kinematic Viscosity @ 100 C, mm2/s, ASTM D445 | 14.6 |
| Kinematic Viscosity @ 40 C, mm2/s, ASTM D445 | 107 |
| Flash Point, Cleveland Open Cup, °C, ASTM D92 | 230 |
| Pour Point, °C, ASTM D97 | -39 |
| Total Base Number, mgKOH/g, ASTM D2896 | 6 |
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