How Often Should Automatic Transmission Fluid Be Replaced?
2 Answers
Automatic transmission fluid should be replaced approximately every two years or 40,000 kilometers. The replacement method is as follows: 1. Start the engine to warm up the transmission to operating temperature; 2. Remove the drain bolt; 3. After the old fluid has completely drained, reinstall the bolt; 4. Add new transmission fluid; 5. Shift the gear lever from P to N, D, L1, and L2 repeatedly, pausing for at least 5 seconds in each position; 6. Check if the automatic transmission fluid level is normal. Transmission fluid is an oil product that keeps the gear system clean. Its functions include: 1. Ensuring normal transmission operation and extending the lifespan of the transmission components; 2. Providing effective lubrication even at low temperatures; 3. Reducing fluid loss under harsh operating conditions.
I've been driving for over twenty years, and changing automatic transmission fluid is pretty crucial. Generally speaking, it's recommended to change it every 50,000 to 100,000 kilometers, depending on your car model and driving habits. Like my old car before, the manual transmission required more frequent changes, needing attention every 40,000 kilometers. If you drive frequently or under harsh conditions, like constant city traffic jams, the wear is faster, so I'd suggest checking it by 60,000 kilometers. Don’t forget to check the owner’s manual—manufacturers have their recommendations. If the fluid isn’t changed for too long, it deteriorates, leading to transmission overheating or even damage, and repairs can be costly. During regular maintenance, have the mechanic check the fluid quality—if it’s clear, it’s still usable; if it’s murky, change it immediately. Pay attention to smooth gear shifts in daily driving—if you feel any jerking, head to the repair shop right away. Safety first—don’t let small issues turn into big problems.
