Mobilube GX 140
Monograde SAE 140 API GL-4 gear oil for heavily loaded manual gearboxes, axles and final drives.
| Classification | |
|---|---|
| Product line | Mobil Mobilube 14 oils |
| SAE viscosity | 140What SAE means |
| Intended use | gear and transmission |
| API class | What API means |
| Typical properties | |
| Viscosity at 40 °C | 447 mm²/s |
| Viscosity at 100 °C | 30 mm²/s |
| Viscosity index | 95 |
| Pour point | -6 °C |
| Flash point | 260 °C |
| Density | 910 kg/m³ |
Description
Mobilube GX 140 is a monograde gear oil of SAE 140 viscosity for heavily loaded manual gearboxes, axles and final drives. It is used in trucks, commercial vehicles and off-highway machinery where an API GL-4 oil of exactly this viscosity is specified.
The manufacturer recommends the GX series for API GL-4 applications. The data sheet lists no official approvals.
Typical figures: viscosity 30 mm²/s at 100 °C and 447 mm²/s at 40 °C, viscosity index 95, pour point -6 °C, flash point 260 °C, density 910 kg/m³.
Application
Heavily loaded manual gearboxes, axles and final drives in trucks, commercial vehicles and off-highway machinery where an API GL-4 oil of this viscosity is specified.
Worth knowing
The hot viscosity of 30 mm²/s keeps this oil inside SAE grade 140 (24.0-32.5 mm²/s according to the SAE J306 table in the article on gear oils). Among Mobil oils in the catalogue, only this one combines such a grade with API GL-4: Mobilube HD-N 80W-140 and Mobilube HD 85W-140 have a close viscosity, 25.3 and 27.5 mm²/s, but they are GL-5, and the HD-N data sheet expressly does not recommend it for GL-4 applications.
Mobilube GX 80W-90 is described in the same data sheet as this oil: the same API class, and likewise no approvals. The difference is in the figures: 14.5 mm²/s at 100 °C, which is already SAE 90, and a pour point of -33 °C instead of -6 °C. The data sheet’s remark about good lubrication in the cold is shared by both, yet the values in the table differ by 27 °C.
Data current as of Check the label and the current product data sheet before you buy.
Sources: official sources of the data on this oil
- Product page on the manufacturer’s site mobil.com
Other Mobil oils
All 150 oils-
Mobilube 1 SHC 75W-90
Fully synthetic 75W-90 gear oil for manual gearboxes and axles, rated API GL-4, GL-5 and MT-1, with SAE J2360, MAN and ZF approvals.
- ZF TE-ML 21A
- ZF TE-ML 05A
- API GL-4
- API GL-5
-
Mobilube HD 75W-90
API GL-5 75W-90 gear oil with a shear-stable viscosity modifier for heavily loaded hypoid axles and final drives.
- API GL-5
-
Mobilube HD 80W-90
partly verified: some specifications could not be confirmed from an official source
API GL-5 80W-90 gear oil for hypoid axles and final drives exposed to shock loads and high torque.
- API GL-5
Other 140 oils
-
Liqui Moly
Liqui Moly Classic Transmission Oil SAE 140
Mineral SAE 140 gear oil to API GL-1, GL-2 and GL-3 for lightly loaded gearboxes and axles in classic cars and motorcycles.
- API GL-1
- API GL-2
- API GL-3
-
Eni
Eni Rotra HY 140
Single-grade SAE 140 gear oil rated API GL-4 for the transmissions of farm and construction machinery.
- API GL-4
-
77 Lubricants
77 Lubricants Autogear Oil GL-1 140
Mineral SAE 140 API GL-1 gear oil without extreme-pressure additives for manual gearboxes and axles of older design.
- API GL-1
-
BP
BP Energear 140
partly verified: some specifications could not be confirmed from an official source
High-viscosity monograde SAE 140 gear oil to API GL-4 for manual gearboxes and gear sets in cars, trucks and machinery.
- API GL-4