Mobilube GX 80W-90

MobilMobil Mobilube linegear and transmission80W-90

API GL-4 80W-90 gear oil for manual gearboxes, axles and final drives.

Classification
Product line Mobil Mobilube 14 oils
SAE viscosity 80W-90What SAE means
Intended use gear and transmission
API class What API means
Typical properties
Viscosity at 40 °C 135 mm²/s
Viscosity at 100 °C 14.5 mm²/s
Viscosity index 104
Pour point -33 °C
Flash point 240 °C
Density 890 kg/m³

Description

Mobilube GX 80W-90 is a gear oil from the Mobilube range for heavily loaded manual gearboxes, axles and final drives. It is intended for cars, trucks, commercial vehicles and off-highway equipment.

The oil maker recommends it wherever API GL-4 is required. The data sheet lists no carmaker approvals.

Typical figures: viscosity 14.5 mm²/s at 100 °C and 135 mm²/s at 40 °C, viscosity index 104, pour point -33 °C, flash point 240 °C, density 890 kg/m³.

Application

Manual gearboxes, axles and final drives in cars, trucks, commercial vehicles and off-highway equipment where API GL-4 is specified.

Worth knowing

One letter in the name changes both the viscosity and the list of codes: Mobilube GX-A 80W has 10 mm²/s at 100 °C against 14.5 mm²/s for GX 80W-90, plus MB 235.14, DTFR 13B100 and ZF TE-ML 17A, which this oil lacks. Despite the shared API GL-4, the different viscosity means it is no substitute for this oil, and on paper this one does not cover the requirements of those codes. The series data sheet also describes GX 140: likewise GL-4, but 30 mm²/s at 100 °C and a pour point of -6 °C.

Of the Mobil 80W-90 oils in the catalogue, two claim GL-4: this one and Mobilube S 80W-90. The second also has API GL-5, API MT-1 and approvals such as MAN 341 Type Z2 and ZF TE-ML 02B, whereas the whole list for GX is a single line. The GX data sheet also names hypoid gears under moderate and severe conditions among its applications, but where an axle is specified as GL-5, this oil does not have that class. Why the words “GL-4” on a new can usually rest on the oil maker’s say-so is explained in the article on GL-4 and GL-5.

Data current as of Check the label and the current product data sheet before you buy.

Sources

Related articles

Other Mobil oils

All 150 oils

  • Mobilube HD 80W-90

    partly verified

    API GL-5 80W-90 gear oil for hypoid axles and final drives exposed to shock loads and high torque.

    • API GL-5

  • Mobilube HD Plus 80W-90

    API GL-5 and MT-1 80W-90 gear oil for truck axles and manual gearboxes, with Mack GO-J, Volvo 97321 and SAE J2360 approvals.

    • SAE J2360
    • Mack GO-J
    • API GL-5
    • API MT-1

  • Mobilube HD-A Plus 80W-90

    API GL-5 80W-90 gear oil for commercial-vehicle axles and manual gearboxes, with MB 235.23, MAN 342 Type M3 and ZF approvals.

    • ZF TE-ML 21A
    • ZF TE-ML 05A
    • API GL-5
    • ZF TE-ML 17B

  • Mobilube S 80W-90

    80W-90 gear oil for manual gearboxes and axles, rated API GL-4, GL-5 and MT-1, with MAN and ZF approvals.

    • ZF TE-ML 21A
    • ZF TE-ML 05A
    • API GL-4
    • API GL-5

Other 80W-90 oils

  • Liqui Moly

    Liqui Moly Hypoid Gear Oil (GL5) SAE 80W-90

    Mineral 80W-90 gear oil to API GL-5 with ZF TE-ML 16B, 17B, 19B and 21A approvals for heavily loaded hypoid drives.

    • ZF TE-ML 21A
    • ZF TE-ML 17B
    • API GL-5
    • MIL-L-2105D
  • Motul

    Motul GEARBOX 80W-90

    Mineral 80W-90 gear oil rated API GL-4 and GL-5, with molybdenum disulphide, for heavily loaded manual gearboxes and axles.

    • API GL-4
    • API GL-5
    • MIL-L-2105D
  • Shell

    Shell Spirax S2 A 80W-90

    partly verified

    API GL-5 80W-90 gear oil for hypoid axles and differentials that run under shock loads and transmit high torque.

    • API GL-5
  • Shell

    Shell Spirax S2 G 80W-90

    partly verified

    API GL-4 80W-90 gear oil with moderate extreme-pressure performance for synchromesh manual gearboxes.

    • API GL-4