Mobil Delvac 1 Transmission Fluid Arctic

Supreme Performance Drivetrain Lubricant

Mobil Delvac 1 Transmission Fluid Arctic is a supreme performance, synthetic drivetrain lubricant engineered to meet the demanding requirements of major manufacturers of heavy-duty commercial equipment in extremely cold climate applications. It is recommended by ExxonMobil for use in truck and other commercial transmissions where Caterpillar TO-4 and Allison C-4 performance specifications are required.  Mobil Delvac 1 Transmission Fluid Arctic provides outstanding clutch and brake compatibility and friction control along the widest temperature range performance.


The state-of-the-art technology behind Mobil Delvac 1 Transmission Fluid Arctic incorporates the highest performance components formulated to provide optimum protection against wear, corrosion, thermal degradation, and oxidation. The product is very shear stable as it contains no viscosity modifiers. It also provides extended clutch and transmission life and longer component life compared to other types of fluids previously used in these applications.


Equipment lubricant recommendations

Our Mobil Serv℠ Product Selector tool will help you identify lubricant(s) for your specific equipment.

Data sheets

Features and Benefits

Today's technology has vastly improved the performance capabilities of heavy-duty on and off-highway equipment in terms of load, speed, control, and reliability through innovative drivetrain designs. These designs have increased the requirements of drivetrain fluids to deliver higher levels of performance, increase productivity, and reduce operating costs. For heavy-duty transmissions, friction control, wear protection, thermal stability, shear stability, rust and corrosion protection, and seal protection are features that must be optimally balanced to provide extended gear and synchronizer life, smooth shift control, fuel economy, and high load capability over a wide range of applications. Mobil Delvac 1 Transmission Fluid Arctic delivers exceptional performance in today's drivetrains where extremely cold ambient temperatures are encountered. The key benefits include:



Advantages and Potential Benefits

Excellent load carrying, anti-wear, and extreme pressure performance

Extended transmission life and reduced cost of operation

Outstanding protection against deposit formation

Longer seal life, extended drain, and service intervals

Maximum protection from corrosion of copper and its alloys

Protects and extends the life of synchronizers

Optimized thermal and oxidation protection

Cleaner transmissions live longer and run smoother

Excellent shear stability with no viscosity modifiers

Maintains effective viscosity and film strength during severe operation

Exceptional low-temperature fluidity and pumpability

Easier smoother shifting with quicker starts and better lubrication

Extended drain and service interval capability

Lower operating costs and higher productivity

Improved frictional properties

Optimum clutch-friction retention and slippage control, improved brake performance (anti-chatter), reliability, fuel economy, and lower operating costs



Recommended by ExxonMobil for use in:

     •  Heavy-duty automotive type manual transmissions and gear cases

     •  On-highway commercial light and heavy-duty trucking, busses, and vans using Allison manual, powershift, or automatic transmissions

     •  Off-highway industries including: construction, mining, and agriculture

     •  Applications where extended service intervals are required and especially in extremely cold environments

     •  Final drives requiring Caterpillar TO-4 fluids


Specifications and Approvals

This product is recommended by ExxonMobil for use in applications requiring:

Allison C-4


This product meets or exceeds the requirements of:



Properties and Specifications



Kinematic Viscosity @ 40 C, mm2/s, ASTM D445


Kinematic Viscosity @ 100 C, mm2/s, ASTM D445


Viscosity Index, ASTM D2270


Pour Point, °C, ASTM D97


Flash Point, Cleveland Open Cup, °C, ASTM D92


Density @ 15 C, kg/l, ASTM D4052



Health and safety

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