Product Description

Mobil Delvac 1 Gear Oil 75W-90 is a fully synthetic drivetrain lubricant engineered to meet very demanding extended drain and warranty requirements. This product is 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 75W-90 incorporates synthetic basestock and advanced additives providing significant advantages over conventional gear oils.

 The state-of-the-art technology in Mobil Delvac 1 Gear Oil 75W-90 delivers excellent performance, helps to protect against thermal degradation and oxidation, contributes to reduced wear and corrosion, improved shear stability and extended service capability.

Features and Benefits

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 Advantages and 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 finalrives 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

Specifications and Approvals

This product has the following approvals:
Dana SHAES 256 Rev C
Dana SHAES 429
Detroit Fluids Specification 93K219.01
FLENDER Railway Gears T 7302
HYUNDAI DYMOSP110SS AXLE – Low Floor Rear Axle
Mack GO-J Plus
MAN 342 Typ M2
MB-Approval 235.8
Navistar, Inc.MPAPS B-6821
SAE J2360
STO 2:0 A FS
Voith Turbo 132.00374401
Voith Turbo 132.00374402
VOLVO 97312
This product is recommended for use in applications requiring:
Eaton PS-163
This product meets or exceeds the requirements of:
R. Bosch ASTE-ML 08
ISUZU Axle Oil
ISUZU Large Manual Transmission Oil
ISUZU LCV Front Axle Oil
Meritor O-76-N
Scania STO 1:0

Properties and Specifications

Grade SAE 75W-90
Density @ 15.6 C, kg/l, ASTM D4052 0.86
Flash Point, Cleveland Open Cup, °C, ASTM D92 205
Kinematic Viscosity @ 100 C, mm2/s, ASTM D445 15.9
Kinematic Viscosity @ 40 C, mm2/s, ASTM D445 120
Pour Point, °C, ASTM D97 -48
Viscosity Index, ASTM D2270 140

Health and safety

Health and Safety recommendations for this product can be found on the Material Safety Data Sheet (MSDS) @


It cannot be guaranteed that the product information given above is up to date. For the latest version of the Product Data Sheet we refer to the product library of ExxonMobil.