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Does not changing transmission oil increase fuel consumption?

1 Answers

LeMia

07/29/25 3:46pm

Not changing transmission oil can lead to increased resistance in transmission operation, which affects fuel consumption; the key issue is that not changing transmission oil is detrimental to the transmission, and in severe cases, it can damage the transmission. Below is more related information: Introduction to the transmission: The working intensity of the transmission is far less than that of the engine, and its working environment is also quite different from the engine. However, this does not mean that transmission oil never deteriorates. If the transmission is not maintained for a long time, under normal use, the impurities generated by the cleaning function of the transmission oil will mix into the daily operation of the transmission oil, causing blockages in the transmission system, abnormal wear, and reduced fluidity of the oil in the torque converter, resulting in sluggish gear response. In addition, long-term deteriorated oil itself will produce a large amount of sludge and become corrosive, affecting the service life of the transmission.

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