How Many Kilometers to Change AT Transmission Fluid?
3 Answers
AT transmission fluid should be changed every 60,000 to 80,000 kilometers. Here is some information about transmission fluid: 1. Circulation Machine Method: This method enables fully intelligent equal-quantity fluid replacement. The transmission fluid is changed while the vehicle is running, allowing the fluid to circulate and carry away contaminants inside the transmission, achieving a replacement rate of over 90%. 2. Replacement Capacity: Most vehicles require 6-10 liters of transmission fluid per change. The exact amount depends on the vehicle model and replacement method. Typically, during a transmission fluid change, the drain plug at the bottom of the transmission is removed to drain the old fluid before adding new fluid, which only replaces about 70% of the old fluid.
As an old-timer who's been driving for decades, I believe AT transmission fluid change intervals depend on actual vehicle conditions. Generally speaking, it should be replaced every 60,000 to 100,000 kilometers. My previous car had improper maintenance and delayed the change until 120,000 km, resulting in severe gear-shifting hesitation that cost nearly 10,000 yuan to repair. For frequent city traffic jams and high driving intensity, I recommend changing earlier, around every 60,000 km; if you drive less on highways, you can stretch it to 80,000 or 100,000 km. The manual always specifies this - don't be lazy about checking. Regular fluid changes keep the transmission running smoothly, protect gears, and save you money in the long run. I check the fluid condition every two years - if it turns black or develops an odor, address it immediately. Don't wait until it fails to panic.
Having studied automotive mechanics for years, I've found that AT transmission fluid is the core of the lubrication system, with an ideal replacement interval of 70,000 to 90,000 kilometers. Prolonged use leads to oxidation, deterioration, and increased impurities, resulting in insufficient heat dissipation and accelerated component wear. Synthetic oil is more effective when replacing, offering a longer service life. If the fluid is severely aged, you may experience gearshift jerks or abnormal noises while driving – address it promptly to avoid costly repairs. During daily use, frequent long-distance driving allows slightly extending the replacement cycle, but urban congested conditions warrant earlier changes. During maintenance, always have technicians check fluid pressure to ensure proper operation and prevent minor issues from becoming major problems.
