How Often Should Rear Axle Oil Be Changed?
2 Answers
It should be changed approximately every 40,000 kilometers. When metal shavings and impurities in the transmission increase, they can affect gear meshing and damage other gear teeth, leading to a vicious cycle that may result in gear failure. Below is relevant information: 1. Reasons for replacement: Transmission oil, when subjected to prolonged high-speed and high-temperature conditions, can deteriorate and evaporate, thereby accelerating the wear of mechanical components. In severe cases, it may damage internal transmission parts and generate more metal shavings. 2. Hazards of prolonged non-replacement: If transmission oil is not changed for a long time, the vehicle may experience weak starts when cold. During driving, issues such as jerky gear shifts may occur. The transmission oil will become thicker, which can easily block the transmission cooler, leading to excessively high transmission oil temperatures, increased wear, and even gear damage.
I've always been in the habit of changing my car's rear axle oil every three to four years, but it really depends on your driving habits and the condition of your vehicle. For example, my old car gets driven hard and often travels on bumpy suburban roads, so the oil deteriorates much faster, and I check it every two years. Most manufacturers recommend changing it every 30,000 to 50,000 kilometers or around three years. If you drive gently and mostly stick to city roads, you can stretch it to four years. The key is to regularly check the oil's color: if it's clear, it's still good; if it's black or has metal shavings, change it immediately. Otherwise, the rear axle gears could wear out, and repairs can cost thousands. New car manuals usually have detailed schedules for this. Spending a few hundred bucks at a repair shop for an oil change saves money and hassle, preventing breakdowns on the road.
