TRIAX Transfluid Ultra TO-4 M is a multi-viscosity heavy duty transmission fluid for heavy duty Powershift transmissions. It exceeds the requirements of Caterpillar TO-4 to TO-4, Allison C-4 and ZF- TE-ML03 transmissions.  Designed for use in torque converters, final drives, transmissions, wet-brake systems and hydraulic systems where a Caterpillar TO-4 or TO-4 M specification is required. 

The significant advantages vs SAE 10W, SAE 50 and SAE 30 oils, is its ability to function over a very wide ambient temperature range, without compromising performance characteristics, but quite the opposite - improving upon conventional fluid performance. 

• Provides both exceptional high temperature performance and stability, film thickness and strength
• Wide-ranging compatibility with heavy equipment transmissions from a variety of manufacturers.
• Exceptionally low temperature pumpability for exceptional wear protection in high load severe service conditions.
• Fortified with additives to guard against gear wear, scuffing, rust, corrosion, foaming and oxidation while providing superb power transfer characteristics.

Direct replacement for OEM Caterpillar TDTO. 

• CAT Hydo Advanced 10 & 30
• CAT TDTO 10W & 30
• Mobiltrans HD Series