How Often Should Gear Oil Be Changed in a Sedan?

[McKingston]

Generally speaking, the gear oil in a sedan should be changed every 60,000 kilometers to effectively improve the efficiency of power transmission from the engine to the gears. The steps for changing car gear oil are as follows: 1. Select gear oil based on the regional environmental temperature. If gear oil is not changed in time during winter, never mix diesel or kerosene into the gear oil to lower the freezing point. Doing so will reduce the anti-wear properties of the gear oil and accelerate gear wear. 2. Since gear oil operates in a sealed housing at relatively low temperatures, its quality changes minimally, and consumption is low. During maintenance, aside from replacing it according to the vehicle's requirements, simply topping up with new oil is sufficient. Based on usage patterns, gear oil is typically changed every 2,000 kilometers. With good maintenance, this interval can be extended to over 30,000 kilometers. 3. When changing to new oil, ensure the old oil is completely drained and the housing interior is cleaned to prevent contamination of the new oil or the introduction of impurities from the housing into the friction surfaces along with the new oil.