What are the consequences of not changing manual transmission fluid?

[BeauRose]

Consequences of not changing manual transmission fluid: 1. The automatic transmission fluid will become thicker, which can easily block the automatic transmission radiator, causing excessively high transmission fluid temperature. This may lead to issues such as gear shift shock, and even damage the automatic transmission; 2. It can easily cause the fluid to deteriorate and reduce viscosity, making the fluid particles larger or generating debris that blocks oil passages. This may result in slight vehicle slippage in automatic transmission clutches or brakes; 3. Automatic transmission fluid serves to lubricate various components. If used for a long time without replacement, it will lose its effectiveness, leaving no protective layer between components and causing direct friction. This will accelerate the wear of mechanical parts, and in severe cases, damage components such as automatic transmission planetary gearsets and differentials.