How to Change Transmission Oil?
2 Answers
The steps for changing transmission oil are: 1. Remove the drain plug at the bottom of the transmission to drain the old oil; 2. Remove the inner and outer shells of the transmission; 3. Take off the transmission oil filter; 4. Remove the oil pan gasket and clean the surrounding stains; 5. Wipe the cleaned transmission oil filter with cotton yarn; 6. Add new oil after installation is complete. The functions of transmission oil are: 1. Keeping the gear system clean; 2. Providing lubrication and extending the life of the transmission device; 3. Cooling and sealing. Maintenance methods for the transmission: 1. Regularly check the oil level; 2. Avoid skipping gears when shifting up; 3. Do not force the transmission into neutral; 4. Do not shorten the idling warm-up time; 5. Avoid gear grinding when shifting.
As someone who enjoys hands-on car maintenance, I've changed transmission fluid several times. The first step is to park the car on level ground for safety and let the engine cool for at least half an hour. Use a jack to lift the car slightly for easier access, but not too high to prevent tipping. Locate the drain plug at the bottom of the transmission, use a wrench to loosen it, and let the old fluid flow into an oil bucket or drain pan—this fluid is hot and dirty, so wear gloves and goggles to avoid splashes. After the fluid has completely drained, screw the plug back in without overtightening to prevent thread damage. Open the fill port on top, insert a funnel, and slowly pour in the new fluid—don't rush, and measure accurately according to the vehicle manual's recommended type and capacity (e.g., 4 liters) to avoid overfilling and waste. Once done, start the engine and let it idle for a few minutes to circulate the fluid, then turn it off and check the dipstick to ensure the level is in the middle. DIY saves a hundred bucks or so, and tools like wrenches, oil buckets, and funnels are handy to keep around. Key point: manual transmissions are easier, while automatics are more complex and require careful fluid matching. Proper maintenance ensures smooth shifting and reduces wear—recommended every 50,000 km to extend transmission life.
