What are the consequences of not changing transmission oil for a long time?

1 Answers
MadisonLee
07/30/25 3:59am
Consequences of not changing transmission oil for a long time: 1. It can cause abnormal wear and severe deterioration of the transmission oil; 2. It can lead to aging and degradation of the transmission oil, not only increasing fuel consumption but also shortening the service life of the transmission; 3. It can cause the transmission oil to become granular, blocking oil passages and damaging the valve body, directly affecting system oil pressure and power transmission, resulting in delayed response and gear shifting shocks. The main function of transmission oil is to keep the shifting system clean and to lubricate and extend the life of the transmission components. Due to different transmission designs, there are manual transmissions and automatic transmissions, each with different technical requirements. Even the same model of transmission configured in different vehicle models will have differences in torque, weight, speed, structure, etc. Therefore, the original manufacturer specifies its own dedicated transmission oil.
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