How to Change Transmission Oil?

[Rojas]

There are three mainstream methods for changing transmission oil: The first method is similar to changing engine oil, which involves loosening the drain screw of the transmission to drain and refill the oil; the second method involves directly removing the oil pan for draining and refilling; the third method uses a circulation machine to replace the transmission oil. Below is relevant information about transmission oil: 1. Reasons for changing transmission oil: Over time, the viscosity of transmission oil becomes thinner, leading to reduced lubrication performance, decreased sealing performance, increased resistance and wear, resulting in unstable pressure and affecting the precision of the hydraulic system. The control precision of the transmission decreases, shifting precision reduces, and both smoothness and response speed are affected. Deteriorated oil also has reduced cooling and anti-oxidation performance, making it prone to issues like excessive oil temperature, creating a vicious cycle that further shortens the lifespan of the oil and transmission components. 2. Transmission oil change intervals: For manual transmission cars that require manual gear shifting, the transmission oil generally needs to be changed every 50,000 kilometers or so; automatic transmissions have relatively lower pressure, so the oil usually needs to be changed every 80,000 kilometers or so.