Liqui Moly Classic Transmission Oil SAE 140

Liqui MolyLiqui Moly Classic linegear and transmission140

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.

Classification
Product line Liqui Moly Classic 5 oils
SAE viscosity 140What SAE means
Base oil mineral
Intended use gear and transmission
API class What API means
Typical properties
Viscosity at 40 °C 390 mm²/s
Viscosity at 100 °C 27.4 mm²/s
Viscosity index 96
Pour point -9 °C
Flash point 250 °C
Density 900 kg/m³
Pack sizes 1 L

Description

Liqui Moly Classic Transmission Oil SAE 140 is a high-viscosity mineral gear oil for gearboxes and final drives in classic cars and motorcycles under light load.

It carries API GL-1, GL-2 and GL-3 and holds no carmaker approvals. It does not reach the extreme-pressure level of GL-4 or GL-5, so it is not intended for units where such a class is specified.

Typical figures: 27.4 mm²/s at 100 °C and 390 mm²/s at 40 °C, viscosity index 96, pour point -9 °C. Available in 1 litre packs.

Application

Lightly loaded gearboxes and final drives in classic cars and motorcycles that call for an API GL-1, GL-2 or GL-3 oil.

Worth knowing

Hypoid Gear Oil (GL5) SAE 140 from the same maker is almost identical in viscosity: 27.7 mm²/s at 100 °C against 27.4 mm²/s here. The classes are not: Hypoid claims API GL-5 and MIL-L-2105D, whereas Classic has only GL-1, GL-2 and GL-3. Under the API 1560 classification, a GL-1 oil contains no extreme-pressure additives and GL-3 is not intended for hypoid axles; the whole series is described in the article on gear oil classes from GL-1 to GL-5. So the same 140 on two cans does not make them interchangeable, and the Classic data sheet itself asks you to choose by the viscosity grade and specification set by the unit’s manufacturer.

The pour point line here reads -9 °C, against -24 °C for both Hypoid SAE 140 and Classic SAE 90; the data sheet gives no other low-temperature figures. Its other caution concerns topping up: this oil can be mixed with other branded gear oils, but the maker expects its full effect only when it is used unmixed.

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

Sources

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