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What are the effects of overfilling transmission fluid?

1 Answers

MacJune

07/30/25 6:14am

The effects of overfilling transmission fluid are: 1. Excessive air entering the transmission, causing clogging of the drain holes on the control valve, resulting in poor drainage and gear shift impact; 2. When the fluid level contacts rotating components, bubbles may form. When bubbly oil enters the oil pump, it leads to abnormal oil pressure and affects lubrication effectiveness. Transmission fluids can be categorized by transmission type: 1. Automatic transmission fluid (ATF); 2. Manual transmission fluid. Transmission fluid is a lubricant that maintains cleanliness in the gear system, ensuring proper transmission operation and prolonging the lifespan of transmission components. It provides effective lubrication at low temperatures and reduces fluid loss under severe operating conditions.

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