Mobil HD

Added Performance Engine Oil

Mobil HD Series are high performance heavy duty engine oils primarily intended for use in gasoline automotive engines of passenger cars, commercial vehicles and farm equipment. They may also be used in diesel engines of commercial vehicles and contractor equipment. They are formulated from high quality mineral base oils and an advanced additive system to provide the excellent performance required for modern combustion engines. They contain an effective balance of detergents and dispersants to minimize the formation of sludge and deposits, retain alkalinity (TBN) and reduce wear.

Features and Benefits

  • Improved engine cleanliness.
  • Good protection against wear and corrosion.
  • Extended intervals between oil drain.
  • Low oil consumption.
  • Reduced inventory costs for mixed fleet operations.


Mobil HD Series are recommended for the lubrication of gasoline engines for passenger cars, commercial vehicles and farm equipment as well as diesel engines for commercial vehicles and contractor equipment. They can also be used in gear and hydraulic applications if the builder approves the use of engine oils.

Specifications and Approvals

Mobil HD 40 and HD 50 are recommended by ExxonMobil for use in applications requiring:4050

Typical Properties

Mobil HD properties  
SAE Grade4050
Viscosity @ 100ºC, cSt, ASTM D 44514.818.8
Total Base Number, mg KOH/g, ASTM 28966.56.5
Sulfated Ash, wt %, ASTM D 8740.70.7
Flash Point, ºC, ASTM D 92220220
Pour Point, ºC, ASTM D 97-6-6

Health and Safety

Based on available information, this product is not expected to produce adverse effects on health when used for the intended application and the recommendations provided in the Material Safety Data Sheet (MSDS) are followed. MSDS's are available upon request through your sales contract office, or via the Internet. This product should not be used for purposes other than its intended use. If disposing of used product, take care to protect the environment.