Today's technology has vastly improved the performance capabilities of heavy-duty on and off-highway equipment load, torque, speed, and control through innovative drivetrain designs. These designs have changed and increased the requirements of lubricants to deliver this higher level of performance, increase productivity, and reduce operating costs. For heavy-duty final drives, friction control, wear protection, thermal stability, shear stability, rust and corrosion prevention, and seal protection are features that must be optimally balanced to contribute to extended gear and seal life, smooth operation, improved fuel economy potential and high load high torque capability over a wide range of applications. The key benefits of Mobil Delvac 1 Gear Oil 75W-90 include:

Features Potential Benefits
Exceptional thermal stability and resistance to high temperature oxidation Long gear and bearing life due to minimal deposits
Long seal life
Outstanding protection against low speed/high torque wear and high speed scoring Increased load-carrying capability.
Helps to reduce maintenance costs and long equipment life
Exceptional shear stability Helps to retain viscosity and film strength under severe operating conditions to prevent wear
Enhanced friction reduction properties Has potential for fuel economy and reduce operating costs
Outstanding low temperature fluidity versus conventional oils Helps to Reduce wear and ease of start-up
Good resistance to foaming Helps to maintain film strength for reliable lubrication
Compatible with typical automotive seals and gaskets Minimum leakage and reduced contamination


  • Heavy duty non-synchronized manual transmissions, axles and final drives requiring API GL-5 and MT-1 performance
  • On-highway light and heavy duty trucks, busses and vans
  • Off-highway industries including: construction, mining, quarrying, and agriculture
  • Other heavy-duty industrial gear drives including hypoid and worm gears operating under conditions where high speed/shock load, high speed/low torque, and/or low speed/high torque conditions prevail
  • Mobil Delvac 1 Gear Oil 75W-90 is intended for initial fill, topping-off or refilling differentials, final drives and transfer cases
  • Recommended for equipment such as winch reduction gears and crawler vehicle propulsion gear drives that are exposed to severe low temperatures
  • Recommended where extended service intervals and warranties are required
  • Not recommended for applications requiring API GL-4 level performance
  • Not intended for automatic, manual or semiautomatic transmissions for which engine oil or automatic transmission fluids are recommended


Mobil Delvac 1 Gear Oil 75W-90 meets or exceeds the requirements of: 
Scania ST0 1:0 X
ISUZU Axle Oil X
ISUZU LCV Front Axle Oil X
ISUZU Large Manual Transmission Oil X
Meritor 0-76-N X


Mobil Delvac 1 Gear Oil 75W-90 has the following builder approvals: 
Volvo 97312 X
SAE J2360 X
Dana SHAES 256 Rev C / 429 X
Detroit Fluids Specification 93K219.01 X
Mack GO-J Plus X
MAN 342 Typ M2 X
MB-Approval 235.8 X
VOITH TURBO 132.00374401 / 132.00374402 X
ZF TE-ML 05B / 12L /  12N / 16F / 17B/ 19C / 21B X


Navistar MPAPS B-6821 X
Hyundai Dymos P1105S Axle - Low Floor Rear Axel X
Flender Railway Gears T7302 X


Mobil Delvac 1 Gear Oil 75W-90 is recommended by ExxonMobil for use in applications requiring: 
Eaton PS 163  X

Typical Properties

Mobil Delvac 1 Gear Oil 75W-90 
SAE Grade 75W-90
Viscosity, ASTM D 445  
cSt @ 40ºC 120
cSt @ 100ºC 15.9
Viscosity Index, ASTM D 2270 140
Pour Point, ºC, ASTM D 97 -48
Flash Point, ºC, ASTM D 92 205
Density @ 15ºC kg/l, ASTM D 4052 0.86


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