Mobilgard 1 SHC
Zinc-free synthetic oil for high-power distillate-fuelled marine diesel engines
SAE 40
Mobilgard M20 Series is a premium, extra high performance 20 TBN engine oil series designed for residual, distillate and LNG-fuelled medium-speed diesel engine applications in the marine and stationary power industries. Extending the ExxonMobil Mobilgard M Series trunk piston engine oils, it is specifically formulated to support the transition to lower sulphur fuels, using high-performance additive detergent technology for outstanding residual fuel-lube compatibility and enhanced engine cleanliness, especially in crankcase, camshaft, ring belt and piston undercrown areas, together with excellent high-temperature oxidation and thermal stability, low volatility and high load-carrying and corrosion protection. It is available in SAE 30 (Mobilgard M320) and SAE 40 (Mobilgard M420) grades. It suits most medium-speed trunk piston engine applications, including main propulsion and auxiliary engines on deep-sea vessels, main propulsion engines on coastal and river ships, and stationary power plants, and was developed with ExxonMobil's patented DAC (Detecting Asphaltene Contamination) Test. Its low-BN formulation is specifically designed for engines using 0.50% and 0.10% sulphur fuels and LNG, and it is especially beneficial in engines with low crankcase oil consumption or low cylinder liner temperatures. Mobilgard M20 Series carries approvals from Everllence (formerly MAN Energy Solutions) 4-stroke medium speed engines for alternating HFO/LNG and HFO operation. Benefits include reduced deposits in piston undercrown and ring belt areas, improved anti-wear properties, advanced detergency/dispersancy, outstanding rust and corrosion protection, high residual fuel compatibility, low lubricant consumption, and excellent TBN reserve and retention.
| Property | Typical value | Method |
|---|---|---|
| Density @ 15 Ckg/l | 0.902 | ASTM D4052 |
| Flash point, Cleveland Open Cup°C | 271 | ASTM D92 |
| Kinematic viscosity @ 100 Cmm2/s | 14 | ASTM D445 |
| Kinematic viscosity @ 40 Cmm2/s | 134 | ASTM D445 |
| Pour point°C | -15 | ASTM D97 |
| Total base numbermgKOH/g | 20 | ASTM D2896 |
| Viscosity index | 102 | ASTM D2270 |
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