Motul MOTYLGEAR 75W-90

MotulMotul Motylgear linegear and transmission75W-90

Synthetic API GL-4 and GL-5 75W-90 gear oil for manual gearboxes, transfer cases and hypoid axles.

Classification
Product line Motul Motylgear 4 oils
SAE viscosity 75W-90What SAE means
Base oil synthetic
Intended use gear and transmission
API class What API means
Approvals
Meets the requirements of What an approval means
Typical properties
Viscosity at 40 °C 114.1 mm²/s
Viscosity at 100 °C 18.1 mm²/s
Viscosity index 176
Pour point -51 °C
Flash point 199 °C
Density 855 kg/m³
Pack sizes 1 L, 5 L, 20 L, 60 L, 208 L

The car maker has not officially approved the entries in the “Meets the requirements of” row.

Description

Motul MOTYLGEAR 75W-90 is a synthetic gear oil based on Technosynthese with extreme-pressure additives. It is intended for manual gearboxes, transaxles, transfer cases and hypoid axles; according to the maker, it also suits gearboxes with a stiff or noisy shift.

The oil is rated API GL-4 and API GL-5 and meets the MIL-L-2105D specification; the data sheet lists no car-maker approvals.

Typical figures: kinematic viscosity 18.1 mm²/s at 100 °C, viscosity index 176, pour point -51 °C, flash point 199 °C. Available in 1 to 208 litres.

It is not intended for axles with a limited-slip differential.

Application

Manual gearboxes, transaxles, transfer cases and hypoid axles without a limited-slip differential that need an API GL-4 or GL-5 75W-90 oil.

Worth knowing

Next to this oil the catalogue has two more Motul 75W-90 oils, GEAR 300 and GEAR 300 LS, with the same API GL-4 and GL-5. Of the three, only GEAR 300 LS 75W-90 is meant for an axle with a limited-slip differential; the MOTYLGEAR data sheet names hypoid differentials only without such a system. MOTYLGEAR is the thickest of the three: 18.1 mm²/s at 100 °C against 16.3 for the LS and 14.4 for GEAR 300. The value lies near the upper limit of grade 90 (13.5 to 18.5 mm²/s), and, according to the maker, the oil stays in this grade even after the 20-hour KRL test.

Of the three oils only this one states MIL-L-2105D, yet that military specification was replaced by MIL-PRF-2105E and later by SAE J2360, which is not in this oil’s list. For a truck axle where SAE J2360 is specified, the MIL-L-2105D line is no substitute. The dates of these replacements are given in the section on trucks and buses in the article on gear oils.

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

Sources

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