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Mobil HD Multi-Grade Series 

Mobilube™ HD Multi-Grade Series

High Performance Commercial Gear Lubricants
Mobilube™ HD 80W-90, HD-A 85W-90 and HD 85W-140 are commercial gear lubricants formulated from high performance base oils and an advanced additive system. These lubricants are engineered for heavy-duty axles and final drives where extreme pressures and shock loading are expected. They are recommended by ExxonMobil for applications where API GL-5 service is required.

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 optimise operating costs. Longer service intervals place additional demands on the gear lubricant requiring effective basestock and additive systems. Mobilube HD Series of gear lubricants are engineered to meet these challenges. Key benefits include:

Features Advantages and Potential Benefits
Exceptional thermal stability and resistance to high temperature oxidationExtended gear and bearing life due to minimal deposits
Longer seal life
Outstanding protection against low speed/high torque wear and against high speed scoringIncreased load carrying capability.
Reduced maintenance costs and longer equipment life
Excellent rust and corrosion protectionReduced wear and longer component life
Effective low temperature lubricationImproved startability
Wide application capabilityReduced number of gear lubricants required
Compatible with typical automotive seals and gasketsMinimum leakage and reduced contamination

Recommended by ExxonMobil for use in:

  • Heavy-duty axles and final drives requiring API GL-5 level performance
  • 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 involving hypoid gears operating under conditions where high speed/shock load, high speed/low torque, and/or low speed/high torque prevail

Mobilube HD Gear Oils meet or exceed the requirements of the following industry specification: 
Mobilube HD 80W-90: API GL-5 
Mobilube™ HD-A 85W-90: API GL-5 
Mobilube™ HD 85W-140: API GL-5

MobilubeMethod Unit HD 80W-90HD-A 85W-90HD 85W-140
CMCS Code  970472970537970166
SAE Grade  80W-9085W-9085W-140
AppearanceVisual   Bright and ClearBright and ClearBright and Clear
Viscosity @ 40ºCASTM D 445CSt   190356
Viscosity @ 100ºCASTM D 445CSt  14.417.425.56
Viscosity Brookfield @ -12ºC CP  81800
Viscosity Brookfield @ -26ºCASTM D 2983CP112000      
Viscosity IndexASTM D 2270 989795
Foam Seq. I (Tend. / Stab.)ASTM D 892ml/ml0/0 0/0
Foam Seq. II (Tend. / Stab.)ASTM D 892ml/ml0/0 0/0
Foam Seq. III (Tend. / Stab.)ASTM D 892ml/ml0/0 0/0
Pour PointASTM D 97ºC-26-16-15
Flash PointASTM D 92ºC199222214
PhosphorusASTM D 4951wt% 0.06 0.06