Why does fuel consumption increase after changing transmission oil?

1 Answers
SanMadison
07/30/25 8:41am
The reasons for increased fuel consumption after changing transmission oil are as follows: Insufficient tire pressure and tire wear: Insufficient or low tire pressure increases friction between tires and the ground, resulting in greater resistance and higher fuel consumption; Severe tire wear often leads to slipping, which also increases fuel consumption; Poor fuel quality: Pay attention to fuel quality and regularly clean carbon deposits; Poor quality gasoline can increase carbon deposits, which roughens the intake pipe walls, affecting air intake efficiency and mixture quality, leading to a sharp rise in fuel consumption; Regularly check the oxygen sensor: This is a ceramic component located on the engine exhaust pipe, used to detect and control the oxygen-to-fuel ratio; After prolonged use, the electronic fuel injection system's computer can no longer obtain information about oxygen concentration in the exhaust pipe, often resulting in a higher concentration of the mixture in the engine and increased fuel consumption.
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