Today’s technology has vastly improved the performance capabilities of heavy duty earth moving equipment in terms of load, speed, control, precision, and reliability through innovative power train designs. These designs have increased the requirements of power-train fluids to deliver higher level of performance, productivity and efficiency. Friction control, wear protection, thermal stability, shear stability, rust and corrosion protection, and pumpability are features that must be optimally balanced to provide extended clutch life, slippage control, maximum drawbar loading, and high load operation even on an inclined slope at extreme temperatures. Mobiltrans HD 10W, 30, 50, 60 deliver exceptional performance in today’s power train transmissions, drive trains, and hydraulic systems. The key benefits include:

Features Advantages and Potential Benefits
Balanced static and dynamic friction coefficients Optimised clutch-friction retention and slippage control
Significantly improved clutch life compared to the best API CD/TO-2 engine oils
Compatible with modern clutch materials and elastomers Longer clutch life and higher performance
Increased levels of anti-wear and load carrying capability Reduced gear wear and extended life in transmissions, gearboxes, and final drives
Greater productivity from reduced downtime
Excellent foam control protection Top performance in wet brakes; excellent control of brake chatter
Excellent thermal and oxidation stability Outstanding hydraulic oil stability and protection against high-pressure pump wear
Lower viscosities offer very good low temperature pumpability Reduced time from start-up to production


Recommended by ExxonMobil for use in:

  • Heavy duty transmissions, gear boxes, final drives, and hydraulic systems used in off-highway applications
  • Off-highway industries including: mining, construction, quarrying, and agriculture
  • Manual, powershift, and automatic transmissions where Allison C-4 fluids (SAE 10W and 30 grades) are called for including Twin Disc and transmissions calling for Type F fluids
  • Most mobile equipment hydraulic applications


Mobiltrans HD meets or exceeds the requirements of the following industry and builder specifications 10W 30 50 60
Caterpillar TO-4 X X X X

Mobiltrans HD Series have the following builder approvals: 10W 30 50 60

Mobiltrans HD is recommended by ExxonMobil for use in applications requiring: 10W 30 50 60
Allison C-4 X X

Typical Properties

Mobiltrans HD
SAE Grade 10W 30 50 60
Viscosity, ASTM D 445
cSt @ 40ºC 42 100 195 340
cSt @ 100ºC 6.3 11.2 18.0 25.2
Viscosity Index, ASTM D 2270 96 97 100 96
Pour Point, ºC, ASTM D 97 -33 -18 -15 -12
Flash Point, ºC, ASTM D 92 202 224 240 244
Density @ 15ºC kg/l, ASTM D 4052 0.888 0.893 0.906 0.911


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Is this fully synthetic oil?
A shopper on Feb 22, 2019
BEST ANSWER: This product is not a fully synthetic oil.