How to Determine Whether Transmission Fluid Needs to Be Replaced?

1 Answers
Kendra
07/30/25 4:31am
To determine whether transmission fluid needs to be replaced, observe the following signs: if the car's gear shifting feels stiff or not smooth, there is unusual noise from the transmission, the body shakes, or the car accelerates slowly, it indicates that the transmission fluid needs to be changed. The functions of transmission fluid are: to keep the gear system clean and to lubricate the transmission device, thereby extending its lifespan. The functions of the transmission are: 1. To change the transmission ratio to meet the traction needs under different driving conditions; 2. To enable reverse driving; 3. To interrupt power transmission to the drive wheels when the engine starts, idles, the car shifts gears, or needs to stop for power output.
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