Dyna Torque HD 10W, 30, 50, and 60 are extra high performance, heavy duty transmission and drive-train lubricants engineered to meet or exceed the requirements of the rigorous Caterpillar TO-4 specification. This product line is uniquely designed to optimise the performance of powershift transmissions, gearboxes, and final drives. In hydraulic applications, they provide maximum protection even in high pressure systems

This technology combines selected base oils and an advanced additive system to deliver the precise performance parameters needed to maximise the productivity of construction, quarrying, and mining equipment operating in severe conditions. These products offer a clear performance advantage over the use of mixed fleet engine oils and previously used lubricants meeting Caterpillar TO-2.

Dyna Torque HD Series Oils are available in SAE 10W, 30, 50, 60

Balanced static and dynamic friction coefficients. Optimized 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 for 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 that reduce time from start-up to production


Dyna Torque HD Recommended by DYNAMO 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.

Available grades

Other products