Will Not Changing Transmission Oil Increase Fuel Consumption?

1 Answers
OBriella
07/29/25 5:09pm
Not changing manual transmission oil does not increase fuel consumption, but not changing automatic transmission oil will. The effects of not changing transmission oil for a long time: 1. Dirty oil can affect gear shifting and power transmission; 2. Not changing transmission oil on time can cause it to deteriorate and evaporate under high-speed and high-temperature conditions, thereby accelerating the wear of mechanical parts, and in severe cases, damaging internal transmission components; 3. Not changing transmission oil on time can make the oil thicker, which can easily block the transmission radiator, leading to excessive transmission oil temperature and increased wear; 4. Not changing transmission oil on time can cause the vehicle to experience slight slipping during driving.
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