When is 75w-90 synthetic gear oil used?


Quick Answer

Use 75w-90 synthetic gear oil when extreme friction and load are expected on the gears in heavy-duty vehicles such as drive trains, commercial trucks and buses. Its relatively high viscosity and good load carrying capability keep the gears safe under extreme pressure.

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Full Answer

The 75w-90 synthetic gear oil has additives that enables the oil to perform even at extreme low and extreme high temperatures. The life of the gears are extended since the gear oil protects it from heavy load wear and tear. The oil also avoids thermal degradation or oxidation and reduces deposits to keep corrosion away. Additionally, it helps in fuel efficiency and results in reduced operation costs.

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