How Many Liters of Transmission Oil Should Be Added at One Time?
2 Answers
If it's a manual oil change (gravity drain), approximately 4 to 6 liters of transmission oil are required; if using an oil changer machine, around 9 to 12 liters are needed. Different vehicle models have varying replacement intervals. Below are the recommended replacement cycles for transmission oil: Manual Transmission: Manual transmission oil is generally recommended to be replaced every three years or approximately every 100,000 kilometers. Automatic Transmission: Automatic transmission oil is typically recommended to be replaced every two years or around every 40,000 kilometers. Continuously Variable Transmission (CVT): CVT transmission oil is usually recommended to be replaced every two years or approximately every 60,000 kilometers. The methods for changing transmission oil are as follows: Loosen the drain plug at the bottom of the transmission to drain the old oil before refilling. Remove the transmission oil pan directly for draining and refilling: This method is more thorough than the previous one, as it removes deposits and impurities from the bottom of the oil pan. Using a circulation machine to change automatic transmission oil: A smart circulation machine enables dynamic oil replacement, filtering and cleaning sludge and impurities within the automatic transmission.
As someone who frequently performs DIY car maintenance, I can tell you that transmission fluid should never be poured carelessly. My sedan typically takes about 4L, but when I helped a friend with an SUV last time, it required a full 7L. The most reliable method is to check the transmission type: manual transmissions usually need 3-5L, CVTs require 5-7L, and dual-clutch transmissions also take around 5L. The safest approach is to consult the maintenance manual, as specifications vary significantly across different model years. After adding fluid, remember to check the dipstick when the engine is warm – the level should be at the midpoint. Last time, my neighbor mindlessly poured in 8L, which caused the transmission to leak, resulting in an extra 2,000 yuan repair bill.
