Mobilube HD-N 80W-140

MobilMobil Mobilube linegear and transmission80W-140

Multigrade API GL-5 80W-140 gear oil for heavily loaded axles, final drives and manual gearboxes in trucks and machinery.

Classification
Product line Mobil Mobilube 14 oils
SAE viscosity 80W-140What SAE means
Intended use gear and transmission
API class What API means
Typical properties
Viscosity at 40 °C 262 mm²/s
Viscosity at 100 °C 25.3 mm²/s
Viscosity index 125
Pour point -30 °C
Flash point 196 °C
Density 892 kg/m³

Description

Mobilube HD-N 80W-140 is a multigrade gear oil with a wide viscosity range for heavily loaded manual gearboxes, axles and final drives. It is used in trucks, with the data sheet naming Scania, as well as in buses, vans, cars and off-highway machinery. The oil protects against rust even when water gets into it.

It is rated API GL-5; the data sheet lists no official approvals.

Typical figures: viscosity 25.3 mm²/s at 100 °C, viscosity index 125, pour point -30 °C.

It is not intended for units that require an API GL-4 level oil or where the manufacturer specifies engine oil or ATF; high-friction differentials that need complete elimination of judder may need a special factory-fill oil.

Application

Heavily loaded manual gearboxes, axles and final drives in trucks (Scania among them), buses, vans, cars and off-highway machinery.

Worth knowing

In the data sheet, Scania appears only in the list of applications: the specifications give API GL-5 and no STO code at all. When the service documentation names a particular code, a make in the applications list is no substitute, and the difference between an approval, a claim and a listing is covered separately. In Mobilube HD Plus 85W-140, Scania STO 1:0 is a claim by the oil maker, while SAE J2360, Mack GO-J and Volvo 97321 are listed as approvals. At 100 °C the two oils are almost the same, 25.4 mm²/s and 25.3 mm²/s here, but the W grade differs: the SAE J306 limit is -12 °C for 85W and -26 °C for 80W, and the pour point is -18 °C against -30 °C. So the HD Plus suits only units whose documentation allows 85W-140.

The data sheet adds two direct warnings. The oil is not recommended for API GL-4 applications, and limited-slip differentials that need all chatter eliminated may call for a special factory-fill oil.

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

Sources

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