How often should manual transmission fluid be changed?
2 Answers
Manual transmission fluid should be changed every 40,000 to 60,000 kilometers. Here is the relevant information: The function of transmission fluid: Transmission fluid can clean the car's gear system, and it also plays a role in lubrication, heat dissipation, and sealing. Additionally, it reduces wear and extends the lifespan of the transmission components. If the transmission fluid is not changed for a long time, the quality and performance of the fluid will deteriorate, reducing its cleaning and lubrication functions. This can accelerate the wear of transmission components and make the transmission more prone to failure. Methods for changing manual transmission fluid: Gravity drain; Connect the transmission's oil circuit interface to a transmission fluid exchange machine, add new fluid into the machine, and use the new fluid to push out the old fluid from the transmission; Remove the transmission oil pan to change the fluid, with the advantage of being able to clean the transmission filter and ensure a thorough replacement.
Regarding how often to change manual transmission oil, I've seen many cars serviced at shops, and the frequency isn't one-size-fits-all. Under normal driving conditions, it's generally recommended to change the oil every 30,000 to 50,000 kilometers, but this depends on the vehicle model and oil type; synthetic oil is more durable and can last over 60,000 kilometers. Driving habits play a big role—for example, since I often drive in congested urban areas with frequent gear shifts, the oil wears out faster, so I check it every 20,000 to 30,000 kilometers. Oil quality is also crucial. If shifting feels rough or there's a squeaking sound in the car, the oil might be oxidized and needs immediate replacement. Don’t just rely on mileage—regularly check the transmission oil's color and smell. If it’s black or has a burnt odor, there’s a problem. Neglecting this can lead to gear wear, and repairs can cost ten times more than an oil change. Remember, following the owner’s manual is the safest bet, but it’s the minimum standard—adjust flexibly based on your driving habits, with safety as the top priority.
