To prolong transmission service life, it is necessary to use oil. But it concerns only mechanical transmissions. In some vehicles the producers recommend to apply traditional motor liquid, and oil is not applied to automatic transmissions at all, and instead of it use the special account structure of ATF. What gear oil is better, it will be told in this article.
How to choose good gear oil for MKPP?
At the moment in operation of a car use oils of five classifications:
- GL-1 standard. These oils are applied in spiral and conical checkpoints, on condition of exploitation of a car in easy conditions. Allow to prevent emergence of foam, corrosion of details and formation of acid.
- Class GL-2. Those who chooses the best gear oil for cargo and agricultural economic vehicles should turn the look on this class. They reduce the level of wear of details in the transmissions operated in the conditions of average weight.
- Class GL-3. Are also intended for the conical checkpoints and cargo cars operated in the conditions of average weight.
- Class GL-4. The most widespread universal type of TM suitable as for cargo, and automobile cars. Enriched with anti-seize and antiwear additives;
- Class GL-5. High operational properties allow to use these oils in operation of too loaded units forced to function under trying conditions. At structure there are numerous additives with high concentration of sulfur.
Those who is interested as it is correct to choose gear oil need to consider that today the greatest distribution was won by the last two classes TM. At the same time to pass from one class to another and it is back inadmissible. Are intended to TM-4 for the cylindrical, spiral and conic and gipoidny transfers functioning at a contact tension up to 3000 MPas and temperature indicators of liquid up to 150 s. And addressees of TM-5 are the gipoidny transfers functioning with impact loads at the contact tension exceeding 3000 MPas and temperature in 150 s. Thereof mark out differences in the set parameters of protective properties.
Characteristics of viscosity
Those who does not know what gear oil to choose should pay attention to viscous characteristics. In particular, SAE 85W-90 are mineral structures for transmission, dense on the structure. SAE 80W-90 are the same mineral liquids, but less dense. SAE 75W-90 are semi-synthetic and synthetic TM.
Review of popular brands
Unfortunately, today in autoshops it is seldom possible to meet a product of domestic production: the majority from presented on shelves are export goods. Entered the TOP of the best representatives:
- ADDINOL Gear Oil GH 75W-90. The product of production of Germany showing the highest characteristics of protection against wear. But at the same time by the index the tease and loadings of a svarivaniye indicators very modest. Not better and low-temperature properties.
- Motul Gear of 300,100% synthese. Oil as a part of which I am present ester. Also the svarivaniya and also fortresses of an oil film differs in high characteristics on protection from the tease. At the same time working indicators of viscosity do not affect car power.
- NGN Synthetic Transmission Oil. The price/quality is nominated in the ratio. Who is interested, what gear oils it is better, should turn the view of this inexpensive, but quite worthy product. Differs in low indicators of temperature of freezing and sufficient level of the main physical and chemical characteristics in combination with reasonable price.
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