Is it necessary to replace the filter when changing transmission fluid with a circulation machine?
2 Answers
When changing the transmission fluid in a car, it is not necessary to replace the filter. If the transmission fluid is changed without removing the oil pan, the filter cannot be replaced. Here are some relevant details: Transmission fluid replacement: Among car maintenance tasks, changing the transmission fluid is also a very important one. Generally, transmission fluid needs to be replaced every two years or after driving approximately 40,000-60,000 kilometers. However, there is a filter inside the transmission oil tank, and often when the transmission fluid is changed, the transmission fluid filter element is not replaced. Function of transmission fluid: During the use of a car, the mechanical metal parts inside the transmission will rub against each other, potentially generating some impurities and metal debris. The role of the transmission fluid filter element is to filter out iron filings, sediment, and other impurities from the transmission fluid, supplying clean transmission fluid to various components, thereby providing lubrication and cleaning functions.
I just had a transmission fluid exchange done with a machine, and here's my advice: replacing the filter is absolutely necessary. The filter acts like a sieve, accumulating lots of metal shavings and sludge over time. If you only change the fluid without replacing the filter, the new fluid gets contaminated immediately by the old debris, which can cause rough shifting or overheating damage to the transmission. During the process, the mechanic will first remove the oil pan, clean out the grime, and then install a new filter. Although this step takes a bit more time and money, it prevents major repairs down the line. I once skipped replacing the filter, and within a few thousand kilometers, problems arose—I regretted it deeply. Remember, transmission maintenance is crucial; a complete service now is far better than regret later. Cost-wise, the filter is just a few dozen bucks, not expensive at all, yet it protects your car to run longer and smoother.
