Gear systems in cars come in contact with many metal-to-metals, which generates heat and wear. Gear oil can protect moving parts by reducing friction and transferring heat to these moving parts. Regularly changing the gear oil of a car is essential maintenance work, it can extend the life of the car and help you avoid expensive repairs on the way. In this blog, we mention the reason why gear oil is important for your car.

What is the use of gear oil?

             Gear oil is a type of lubricating oil designed for use in car or truck transmissions, manual transmissions, differentials, drive axles and transfer cases. Gear oil can help your transmission run smoothly. More importantly, it helps protect the key internal components in the automotive gear system from wear and thermal or heat damage.

Insufficient lubrication can cause scouring, corrosion, scratching and pitting of important powertrain components. This deterioration can impair the performance of your car and ultimately lead to expensive repairs. Gear oil and engine oil are not the same thing and cannot be interchanged. Gear oil is specially formulated for gear oil. Motor oil…you guessed it – for motors.

How do I know which gear oil to use for the car?

             Once check your user manual. The specifications of the gear system may vary from car to car as per modern technology. Using the wrong gear oil may result in performance degradation and even damage to internal components, so it is very important to only use gear oil recommended by the car manufacturer.

The American Petroleum Institute grades the overall performance of gear oils and GL-4 and GL-5 graded gear oils are the most common gear oils on the market. For heavy or high-performance vehicles, such as trucks and sports cars, EP 90 GL-5 gear oil is very suitable. Always recommend buying Ep 90 GL-5 gear oil from the trusted and certified gear oil manufacturer, it will assure you for quality and standards.

What happens if the gear oil is not replaced?

             If the gear oil is not changed according to the manufacturer’s recommended schedule, it may severely damage the car’s transmission and other gear systems. This may mean that parts must be replaced and the gearbox repaired, but the cost goes high.

Manual transmissions and other gear systems work through many metal-to-metal contacts. Natural friction grinds these moving parts, and tiny metal particles slowly accumulate in the gear oil. These factors will eventually damage the lubrication quality of gear oil. Therefore, if the gear oil is not drained and replaced regularly, the service life of the transmission will be shortened.

How often should the gear oil be changed?

             Before taking any action kindly recommend the owner’s manual first. But if you are driving a car under normal conditions, you should change the gear oil for automatic transmission every 48,000 to 80,000 kilometers (30,000 to 50,000 miles), and for manual transmission change the oil between 96,000 to 160,000 km (60,000 to 100,000 miles). If you often subject your car to harsh conditions (such as towing or driving in the mud), you may need to change gear oil frequently every 24,000 kilometers (15,000 miles).

What are the signs that the gear oil should be replaced?

                Pay attention to how the transmission feels when changing gears. Slipping or beating? Strange burning smells or hissing or grinding sounds are also signs that you need to change your gear oil. Pay attention to leaks, as they may show contaminated oil. If your transmission oil is dark or broken, it is ready to change. Finally, the “inspection engine” light on your dashboard is always a sign that something under the hood requires your immediate attention.

If you have any questions regarding products, please visit us on Gars Lubricants – India’s Trusted Engine Oil Manufacturer. For any distributor, enquiry click the button below.


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