Is It Normal for the Transmission to Have a Slight Oil Leak?

1 Answers
Christian
07/29/25 2:28pm
It is not normal for the transmission to have a slight oil leak. The effects of oil leakage are: 1. Increased operational resistance inside the transmission, leading to abnormal oil leakage; 2. The rotating components agitating the oil may produce bubbles; 3. Abnormal oil pressure, causing air blockage in the control valve's oil drain holes and resulting in poor oil drainage; 4. Occurrence of gear shifting shocks. The reasons for a slight oil leak in the transmission are: 1. Aging of the rubber oil seals; 2. Overloading of transmission fluid; 3. Damage to the vehicle's undercarriage; 4. Aging or wear of the engine crankshaft rear oil seal; 5. Excessive pressure inside the crankcase. The function of transmission oil is to keep the gear shifting system clean and to lubricate the transmission components, thereby extending their lifespan.
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