How many kilometers should motor vehicle gear oil be changed?
2 Answers
Motor vehicle gear oil should be changed every 40,000 kilometers. This can effectively improve the efficiency of gear transmission of engine power. Vehicle owners also need to conduct comprehensive multi-angle considerations based on specific conditions to determine the replacement cycle. Generally, the first oil change for new gears should be done early to discharge initial wear particles. It is recommended to change the oil at the first 1,500 kilometers, then at 3,000 kilometers, and subsequently every 10,000 kilometers or more. Motor vehicle gear oil is a high-viscosity lubricant specifically designed to protect power transmission components, typically accompanied by a strong sulfur odor.
I've been driving manual transmission cars for many years. While the manual suggests when to change the gear oil, my experience tells me it should be done every 60,000 to 80,000 kilometers, depending on your driving habits. I frequently go on long-distance trips with a full load of cargo, so I change it every 60,000 kilometers. After changing the oil, shifting becomes much smoother, and it helps protect the transmission from wear. If you don't change it, the oil deteriorates, lubrication worsens, and friction between gears increases, leading to strange noises or rough shifting. If it breaks down, repairs can be extremely expensive. Generally, it's recommended to check the gear oil every 5 years for regular cars, even if the mileage is low, as the oil can degrade over time. During maintenance, ask the mechanic to check the oil condition—if it turns black or becomes thin, it's a sign to take action early, saving both money and hassle.
