Is it dangerous not to change transmission oil?

[AndersonLynn]

Not changing transmission oil is extremely dangerous. Failure to change the oil can lead to the following problems: 1. Reduced transmission efficiency, making the vehicle consume more fuel and causing delayed power response. 2. Gear shifting becomes less smooth, with noticeable lag. 3. Unstable RPM during gear changes, increasing the burden on the powertrain. 4. Accumulated impurities and deposits inside the engine may clog oil passages, reduce cooling efficiency, and increase the risk of vehicle failure. 5. Changes in the PH value inside the transmission, accelerating component wear and shortening service life. Below are the methods for changing transmission oil: Transmission oil replacement can be done manually or by machine. Manual replacement is similar to changing engine oil, relying on gravity to drain the old oil, but this method only removes about 30% of the old oil, with significant residue remaining in the oil pan, requiring its removal to clean out the residue. Machine replacement refers to using a flushing machine, which generates pressure to push out the old oil and refill with new oil, achieving a replacement rate of around 80%.