- Powershift drivetrains (TO-4)
SAE 30
Heavy-duty powershift transmission, gearbox and final drive oil, Caterpillar TO-4
Official approval
Off-road equipment transmission fluid (ZF class 03C)
ZF list of admitted lubricants for ZF torque-converter transmissions in off-highway equipment (chapter 03).
Official approval
Hydrostatic-mechanical drive gear oil (ZF class 07F)
ZF list of admitted lubricants for ZF hydrostatic-mechanical and electric drive systems.
Allison C-4 — off-highway automatic transmission fluid
Allison's fluid specification for off-highway and truck automatic transmissions: stable wet-clutch friction, gear protection and seal compatibility.
Komatsu KES 07.868.1 — hydraulic fluid
Komatsu standard for hydraulic fluids, with in-house wear and low-temperature requirements.
| Property | Typical value | Method |
|---|---|---|
| Density @ 15 Ckg/l | 0.89 | ASTM D4052 |
| Flash point, Cleveland Open Cup°C | 224 | ASTM D92 |
| Kinematic viscosity @ 100 Cmm2/s | 11.2 | ASTM D445 |
| Kinematic viscosity @ 40 Cmm2/s | 100 | ASTM D445 |
| Pour point°C | -18 | ASTM D97 |
| Viscosity index | 97 | ASTM D2270 |

Mobiltrans HD 30 is an extra high performance, heavy duty transmission and drive-train lubricant from the Mobiltrans HD series (10W, 30, 50 and 60), engineered to meet or exceed the requirements of the rigorous Caterpillar TO-4 specification. The series is uniquely designed to optimise the performance of powershift transmissions, gearboxes and final drives, and provides maximum protection in hydraulic applications even in high-pressure systems. Selected base oils and an advanced additive system deliver the precise performance parameters needed to maximise productivity of construction, quarrying and mining equipment operating in severe conditions, offering a clear performance advantage over mixed-fleet engine oils and older lubricants meeting only Caterpillar TO-2. This SAE 30 grade has a kinematic viscosity of 11.2 mm²/s at 100 °C and 100 mm²/s at 40 °C, a viscosity index of 97 and a pour point of -18 °C. It is recommended for heavy duty transmissions, gearboxes, final drives and hydraulic systems in off-highway mining, construction, quarrying and agriculture, and for most mobile equipment hydraulic applications. It is also recommended for manual, powershift and automatic transmissions calling for Allison C-4 fluids, including Twin Disc transmissions and transmissions calling for Type F fluids. Mobiltrans HD 30 carries ZF TE-ML 03C and ZF TE-ML 07F approvals, is recommended for applications requiring Allison C-4 and Komatsu KES 07.868.1, and meets or exceeds Caterpillar TO-4.
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