Mobilube™ HD Plus  

Mobil Commercial Vehicle Lube, Canada

High Performance Commercial Gear Lubricants

Product Description

Mobilube™ HD Plus MG 75W, 80W-90 and 85W-140 are high performance commercial gear lubricants formulated from select base oils and an advanced additive system. These lubricants are engineered for performance in heavy-duty commercial transmissions, axles, and final drives where extreme pressures and shock loading are expected. They provide excellent chemical and thermal stability at elevated bulk oil temperatures, good performance at low temperatures, and good rust protection resulting from water contamination and wet conditions. They will provide excellent performance in applications where API GL-5 or MT-1 lubricants are required.


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 maximize equipment life and optimize operating costs. Longer service intervals place additional demands on the gear lubricant. Mobilube HD Plus gear lubricants are engineered to meet these challenges. The key benefits include:



Features Advantages and Potential Benefits
Excellent thermal stability and resistance to high temperature oxidation Extended gear and bearing life due to minimal deposits and longer seal life
Good protection against low speed/high torque wear and against high speed scoring Increased load carrying capability and reduced operating costs
Excellent rust, staining, and corrosion protection Reduced wear and longer component life
Effective low temperature lubrication Reduced wear and ease of start-up
Wide multipurpose capability Reduced number of gear lubricants to simplify inventory and minimize misapplication
Good resistance to foaming Maintains film strength for effective lubrication
Compatible with typical automotive seals and gaskets Minimum leakage and reduced contamination




  • Heavy-duty manual transmissions, axles, and final drives requiring API GL-5 and MT-1 level performance
  • On-highway light and heavy-duty trucks, busses, vans, and cars
  • Off-highway industries including: construction, mining, quarrying, and agriculture
  • Other heavy-duty industrial and automotive applications involving hypoid and other gears operating under conditions where high speed/shock load, high speed/low torque, and/or low speed/high torque conditions prevail
  • Mobilube HD Plus gear lubricants are intended for initial fill, top-off, and refill of enclosed commercial gearing in manual or semiautomatic transmissions where gear lubricants are recommended including drive axles and final drives
  • Not recommended for applications requiring API GL-4 Level performance
  • Not intended for transmissions for which engine oil or automatic transmission fluids are recommended


Specifications and Approvals


Mobilube HD Plus meets or exceeds the requirements of: 80W-90 85W-140

Mobilube HD Plus is recommended by Imperial Oil for use in applications requiring: MG 75W 80W-90 85W-140



Typical Properties


Mobilube HD Plus MG 75W 80W-90 85W-140
SAE Grade 75W 80W-90 85W-140
Viscosity, ASTM D 445
cSt @ 40ºC 92 146 347
cSt @ 100ºC 15.8 15.8 27.4
Viscosity Index, ASTM D 2270 184 111 105
Pour Point, ºC, ASTM D 97 -45 -27 -15
Flash Point, ºC, ASTM D 92 150 165 200
Density @ 15ºC kg/l, ASTM D 4052 0.896 0.887 0.894



Health and Safety

The products described on this data sheet are manufactured from high quality petroleum base stocks, carefully blended with selected additives. As with all petroleum products, good personal hygiene and careful handling should always be practiced. Avoid prolonged contact to skin, splashing into the eyes, ingestion or vapour inhalation. Please refer to the Material Safety Data Sheet for further information.

Note: The products described on this data sheet are NOT controlled under Canadian WHMIS legislation.


All trademarks used herein are trademarks or registered trademarks of Exxon Mobil Corporation or one of its subsidiaries unless indicated otherwise.


Imperial Oil

Petroleum and Chemicals Division
Lubricants and Specialties
240 Fourth Ave SW
C. P. 2480, Station M
Calgary AB T2P 3 M 9


Typical Properties are typical of those obtained with normal production tolerance and do not constitute a specification. Variations that do not affect product performance are to be expected during normal manufacture and at different blending locations. The information contained herein is subject to change without notice. All products may not be available locally. For more information, contact your local ExxonMobil contact or visit
ExxonMobil is comprised of numerous affiliates and subsidiaries, many with names that include Esso, Mobil, or ExxonMobil. Nothing in this document is intended to override or supersede the corporate separateness of local entities. Responsibility for local action and accountability remains with the local ExxonMobil-affiliate entities.