TAREX GEAR-X4 85W-140 GL-4 is a multigrade gear oil for manual transmissions, transaxles, and certain steering gears under high torque. It provides dependable wear and scuffing protection in synchronized and non-synchronized gearboxes, with stable viscosity and shear performance for consistent lubrication. Good resistance to aging, foaming, and corrosion, along with elastomer compatibility, supports reliable operation in demanding service.
Meets the Specifications:
API GL-4; SAE J2360; U.S. Steel 22451517 Part III
Please check your owner’s manual for the manufacturer’s recommended oil viscosity grade and API classification and approvals.
| TAREX | Test Method | |
|---|---|---|
| API | GL-4 | |
| SAE Grade | 85W-140 | |
| Density at 15 °C, gr/cm³ | ASTM D 1298 | 0.90 |
| Viscosity at 40 °C, cSt | ASTM D 445 | 330 – 340 |
| Viscosity at 100 °C, cSt | ASTM D 445 | 24.5 – 25.0 |
| Viscosity Index | ASTM D 2270 | 97 |
| Flash Point, °C | ASTM D 92 | 235 |
| Pour Point, °C | ASTM D 97 | -18 |
