回复：变速箱油一般多少公里换一次？自己能换吗？

Just litte bit more labor-intensive than changing engine oil. Need to unscrew about 16 small bolts holidng oil pan. The key things you need to pay attention
1. Select the right type of lubricant; check vehicle manual
2. Find a drain pan with larger opening than tranmission oil pan
3. Use jackstand to support the car: safety is always #1 priority
4. Scrap off the remaining old gasket on the oil pan before putting the new one
5. Don't overfill oil