How often should transmission oil be changed?

[VanClara]

For most models on the market, it's recommended to change the transmission oil every 60,000 to 80,000 kilometers. Here's some information about transmission oil: 1. Long-term failure to change the oil can cause permanent damage to the transmission. The reason why it's important to pay attention to the replacement cycle of transmission oil is that long-term failure to change it can cause irreversible damage to the transmission. More than 80% of transmission failures are caused by not changing the transmission oil for a long time, which leads to oil deterioration and excessive oil temperature during operation. When the oil temperature exceeds 120°C, rubber sealing materials begin to harden and age. If the oil temperature exceeds 135°C, gears will start to slip, which further increases the oil temperature, exacerbating transmission damage and creating a vicious cycle. 2. There is no air circulation inside the transmission; it relies on transmission oil. Therefore, automatic transmission oil not only serves to cool, clean, and lubricate but also to transmit power. Automatic transmission oil must meet a certain viscosity balance point. Precisely because it needs to transmit power, automatic transmission oil must meet higher viscosity requirements.