Api Gl 3 Gear Oil

The viscosity has no relation with the api gear oil classification and should be chosen based on the recommendations from the manufacturer based on the temperatures where you will drive. There are 2 products available in millers green gear oil range of gl1 oils as follows. The main difference between gl 4 and gl 5 gear oils is the amount of ep additives.

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Ns Mp Hypoid Gear Lubricant Kendall Motor Oil

Some transmission and axle manufacturers specify engine oils for this service.

Api gl 3 gear oil. The api gl 3 gear oil specification was introduced by the american petroleum institute api for manual gearboxes under moderate to severe stress and spiral bevelled axels under moderate conditions and load these oils contain up to 2 7 anti wear additives. Millers classic green gear oil 90 gl1 and millers classic green gear oil 140 gl1. The designation api gl 1 denotes lubricants intended for manual transmissions operating under such mild conditions that straight petroleum or refined petroleum oil may be used satisfactorily. Exceeds the tough test requirements demanded by renowned manufacturers.

Sulphur phosphorus containing products are used as ep additive. In general the higher the gl rating the higher the extreme pressure ep protection provided. Api gl 3 is not recommended for hypoid gears. Gear oil based on synthesis technology with extremely high performance reserves.

This is great for. Oxidation and rust inhibitors defoamers and pour depressants may be added to improve the characteristics of these lubricants. With advanced wear protection technology. The gears and synchronizers have seemingly conflicting requirements.

Guarantees maximum performance even with long oil change intervals. Ensures exact friction behavior and provides outstanding ageing resistance. Api category gl 3 inactive designates the type of service characteristic of manual transmissions and spiral bevel axles operating under mild to moderate to severe conditions of speed and load. While a manual transmission does in fact have gears it may also contain other components such as synchronizers.

It has very low ep extreme pressure performance and does not. These gear oils are used for worm gear type axles and can have additional additives on top of what is allowed in gl 1 oils. They re still not allowed to use extreme pressure additives. The manufacturer s specific lubricant quality recommendations should be followed.

Gear lubricants designated for api gl 3 service are not intended for axles with hypoid gears. Api api gear oil specifications. Gl3 is the next level of performance and has very limited applications. The american petroleum institute api gl rating system is intended for gear oil specifications.

Mainly specified for french and italian fiat alfa cars which had very soft synchromesh.