Mobilube™ GX 80W-90

Mobilube GX 80W-90

Heavy Duty Automotive Gear Lubricants

Mobilube GX 80W-90, 140 are high performance, heavy duty gear lubricants formulated from high quality base oils and an advanced additive system.  These lubricants are engineered for automotive heavy-duty transmissions, axles, and final drives where protection against wear and scoring is required. They are recommended by ExxonMobil for use in applications  where API GL-4 service is required.


Features and Benefits

Today’s heavy equipment applications place higher performance demands on drivetrain lubricants.  Higher speeds, higher torque, and heavier loads require improved formulations to maximise equipment life and optimise operating costs.  Longer service intervals place additional demands on the gear lubricant requiring effective basestock and additive systems.  Mobilube GX 80W-90, 140 is engineered to meet these challenges.  The key benefits include:

FeaturesAdvantages and Potential Benefits
Good thermal stability and resistance to high temperature oxidationExtended gear and bearing life due to minimal deposits
Longer seal life
Excellent rust and corrosion protectionLonger component life
Good low temperature lubricationReduced wear at start-up and ease of start-up
Compatible with typical seals and gasketsMinimum leakage and reduced contamination



      Recommended by ExxonMobil for use in:

  • Heavy duty manual transmissions, axles and final drives requiring API GL-4 level performance
  • Passenger cars, on highway light and heavy duty trucks, and commercial vehicles
  • Off highway industries including: construction, mining, quarrying, and agriculture
  • Other heavy duty industrial and automotive applications including hypoid gears operating under moderate to severe conditions


Specifications and Approvals

Mobilube GX Gear Oils are recommended by ExxonMobil for use in applications requiring:80W-90140


Typical Properties

Mobilube GX Gear OilsProperties  
SAE Grade80W-90140
Viscosity, ASTM D 445  
cSt @ 40ºC135447
cSt @ 100ºC14.530.0
Viscosity Index, ASTM D 227010495
Pour Point, ºC, ASTM D 97-33-6
Flash Point, ºC, ASTM D 92240260
Density @ 15ºC kg/l, ASTM D 40520.890.91


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.