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Bottle of Mobil Delvac 1™ Gear Oil

Mobil Delvac 1™ Gear Oil

Advanced performance synthetic drivetrain lubricant

Mobil Delvac™ Synthetic Gear Oil was renamed Mobil Delvac 1™ Gear Oil, and is in market now. Get more information about product name changes.

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 provides longer equipment life and reduced maintenance costs
  • Exceptional shear stability helps to retain viscosity and film strength under severe operating conditions to prevent wear
  • Excellent rust, staining and corrosion protection of copper and its alloys helps to reduce wear and provide long component life
  • Enhanced friction reduction properties can help improve fuel economy potential by up to 1 percent and help 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

What does this viscosity mean?
  • 75W-90

    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

    Typical properties

    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

  • 80W-140

    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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