Mobil Delvac 1™ Gear Oil

Mobil Delvac 1 Gear Oil is a fully synthetic drivetrain lubricant engineered to meet very demanding extended drain and warranty requirements. These gear oils are designed for use in heavy-duty drivetrains that require gear lubricants with excellent load-carrying capability and where extreme pressures and shock loading are expected.

Mobil Delvac 1 Gear Oil incorporates synthetic base stocks and advanced additives, providing significant advantages over conventional gear oils. The state-of-the-art technology in Mobil Delvac 1 Gear Oil delivers excellent performance, helps to protect against thermal degradation and oxidation, and contributes to reduced wear and corrosion, improved shear stability and extended service capability.

These oils can be used for on-highway light- and heavy-duty trucks, buses and vans. Other applications include off-highway industries, such as construction, mining, quarrying and agriculture.

Important: These oils are not recommended for applications requiring API GL-4 level performance. They are not intended for automatic, manual or semiautomatic transmissions for which engine oil or automatic transmission fluids are recommended.

Please refer to the owner’s handbook for the OEM application requirements for your vehicle or equipment.


Features and benefits

  • Exceptional thermal stability and resistance to high-temperature oxidation help to extend gear, bearing and seal life due to minimal deposits
  • Outstanding protection against low-speed/high-torque wear and against high-speed scoring helps to provide longer equipment life and reduced maintenance costs
  • Exceptional shear stability helps to retain viscosity and film strength under severe operating conditions to prevent wear
  • Enhanced friction reduction properties can help improve fuel economy potential and reduce operating costs
  • Outstanding low-temperature fluidity versus conventional oils helps to reduce wear at startup and make startup easier in cold conditions

Available viscosity grades

Specifications and approvals  

Mobil Delvac 1 Gear Oil 75W-90 meets or exceeds the requirements of:

  • API GL-5/MT-1
  • Scania STO 1:0
  • ISUZU Axle Oil
  • ISUZU LCV Front Axle Oil
  • ISUZU Large Manual Transmission Oil
  • Meritor 0-76-N
  • BOSCH TE-ML 08

Mobil Delvac 1 Gear Oil 75W-90 has the following builder approvals:

  • Volvo 97312
  • SAE J2360
  • Dana SHAES 256 Rev C / 429
  • Detroit Fluids Specification 93K219.01
  • Mack GO-J Plus
  • MAN 342 Typ M2
  • MB-Approval 235.8
  • VOITH TURBO 132.00374401/132.00374402
  • ZF TE-ML 05B/12L /12N/16F/17B/19C/21B
  • SCANIA STO 2:0 A
  • SCANIA STO 2:0 A FS
  • Navistar MPAPS B-6821
  • Hyundai Dymos P1105S Axle - Low Floor Rear Axle
  • Flender Railway Gears T7302

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

  • Eaton PS 163
  • MIL-PRF 2105E

Technical details  

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

View product data sheet for Mobil Delvac 1 Gear Oil 75W-90

Specifications and approvals  

Mobil Delvac 1 Gear Oil 80W-140 meets or exceeds the requirements of the following industry and builder specifications:

  • API GL-5/MT-1
  • Scania STO 1:0

Mobil Delvac 1 Gear Oil 80W-140 has the following builder approvals:

  • Dana SHAES 429
  • Mack GO-J
  • ZF TE-ML 05B/12B/16F/19C/21B
  • Navistar MPAPS B-6821
  • SAE J2360

Mobil Delvac 1 Gear Oil 80W-140 is recommended by ExxonMobil for use in applications requiring:

  • MIL-PRF 2105E
  • DANA SHAES 256

Typical properties  

SAE Grade 80W-140
Viscosity, ASTM D 445  
cSt @ 40ºC 310
cSt @ 100ºC 31.2
Viscosity Index, ASTM D 2270 139
Pour Point, ºC, ASTM D 97 -36
Flash Point, ºC, ASTM D 92 210
Density @ 15ºC kg/l, ASTM D 4052 0.870

View product data sheet for Mobil Delvac 1 Gear Oil 80W-140

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