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How many kilometers should a new car drive before changing the gear oil?

1 Answers

LeilaniLynn

07/30/25 8:01am

Generally, the gear oil in a new car should be replaced every 40,000 kilometers or every two years. Gear oil deteriorates and volatilizes when working for long periods under high-speed and high-temperature conditions, so regular replacement is necessary. Failure to replace it may accelerate wear and tear on mechanical components. Gear oil helps maintain the cleanliness of the gear system, lubricates the transmission, and extends its service life. Gear oil is primarily composed of petroleum-based lubricating oil or synthetic lubricating oil, blended with extreme pressure anti-wear agents and oiliness agents. It mainly functions to lubricate gears and bearings, prevent wear and corrosion, and assist in heat dissipation for gears. It is used in various gear transmission devices to prolong their service life and enhance power transmission efficiency.

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