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Mobilgard™ HSD 15W-40

Mobilgard™ HSD 15W-40 is designed to provide outstanding performance in the most severe-service marine applications of modern, high-speed diesel engines.

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Product information

   Mobilgard™ HSD Series performance profile 617.435 KB/pdf
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Advantages and Potential Benefits
Thermal and oxidation stability Controls sludge buildup and deposits
Excellent detergency/dispersancy Keeps your engines clean
Stay-in-grade shear stability Minimises oil consumption and wear


Mobilgard HSD 20W-50 oil is recommended for use in:

  • Diesel-powered equipment from leading engine manufacturers
  • Older and reconditioned marine engines
  • Engines that meet API CF-4/CF/SG/SF

Typical Properties

Mobilgard HSD
SAE Grade 20W-50
Viscosity, ASTM D 445
cSt, at 40ºC 149
cSt, at 100ºC 17.6
Viscosity Index, ASTM D 2270 130
Sulphated Ash, wt%, ASTM D 874 1.0
Total Base #, mg KOH/g, ASTM D 2896 8.4
Pour Point, ºC, ASTM D 97 -30
Flash Point, ºC, ASTM D 92 220
Density @ 15ºC kg/l, ASTM D 4052 0.88
  • Cruise and Ferry
  • Inland and Coastal
  • Offshore Supply Vessels
  • Specialized Shipping
  • Short Sea Shipping
  • Conventional oil
  • Corrosion protection
  • Energy Efficient
  • Enhanced Wear Protection
  • Environmentally Acceptable Lubricants EAL
  • Extended Life
  • Extreme Pressure
  • Food Grade
  • High Moisture
  • High Temperature
  • Lithium Complex
  • Low Temperature
  • Lubricants storage and handling
  • Micropitting
  • Synthetic
  • Synthetic Grease
  • Vessel General Permit VGP
  • Water Resistance
  • Wide Temperature
  • Zinc Free
  • Calcium lithium
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