If the car has weak speed, increased fuel consumption, increased jitter, etc., it should be checked whether the transmission oil needs to be replaced. If it is not replaced in time, it may cause blockage of the pipeline and overheating of the transmission.
In addition, the old oil needs to be drained before replacing the transmission oil, because the structure of the transmission is complicated, and if it is not cleaned, the newly injected transmission oil will be contaminated. Therefore, be sure to go to the 4S shop and ask the professional technician to replace it, to ensure that the old oil is completely removed and the gearbox is maintained. Use the transmission flush machine to make the transmission oil more completely replaced.