Product Description

Mobilube HD-A Plus 80W-90 is engineered for commercial transmissions, axles, and final drives where extreme pressures and shock loading are expected and is recommended by ExxonMobil for applications where API GL-5 service is required. It is formulated from high performance base oils and an advanced additive system. This lubricant is a heavy duty gear lubricant allowing extended oil drain intervals predominantly in Mercedes Benz axles.

Features and Benefits

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

Features Advantages and Potential Benefits
Excellent thermal stability and resistance to high temperature oxidation Long gear and bearing life due to minimal deposits. Long seal life.
Enhanced protection against low speed/high torque wear and against high speed scoring especially in heavily loaded rear axles Increased load carrying capability Reduced maintenance costs and longer equipment life
Effective rust and corrosion protection Reduced wear and longer component life
Multipurpose capability Reduced number of gear lubricants required
Compatible with typical automotive seals and gaskets Minimum leakage and reduced contamination
Extended drain capability Increased productivity and reduced operating costs


Recommended by ExxonMobil for use in:

  • Heavy duty automotive manual transmissions, axles, and final drives requiring API GL-5 level performance
  • On highway cars and light trucks; heavy duty commercial vehicles
  • Off highway industries including: construction, mining, quarrying, and agriculture
  • Other gearboxes, steering gears and variable gearboxes
  • Other heavy duty industrial and automotive applications involving hypoid gears operating under conditions where high speed/shock load, high speed/low torque, and/or low speed/high torque prevail

Specifications and Approvals

Mobilube HD-A Plus has the following builder approvals: 80W-90
MB-Approval 235.20 X
MAN 342 Typ M3 X
MAN 341 Typ GA1 X
ZF TE-ML 05A, 12L, 12M, 16B, 17B, 19B, 21A X
Mobilube HD-A Plus meets or exceeds the requirements of the following industry and builder specifications:

Typical Properties

Mobilube HD-A Plus 80W-90
SAE Grade 80W-90
Viscosity, ASTM D 445
cSt @ 40ºC 131
cSt @ 100ºC 14.3
Viscosity Index, ASTM D 2270 105
Pour Point, ºC, ASTM D 97 -33
Flash Point, ºC, ASTM D 92 222
Density @ 15°C kg/l, ASTM D 4052 0.901

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, or will be provided by seller to customers if and as legally required. This product should not be used for purposes other than its intended use. If disposing of used product, take care to protect the environment.


It cannot be guaranteed that the product information given above is up to date. For the latest version of the Product Data Sheet we refer to the product library of ExxonMobil.