Should I Flush Transmission Fluid?
A transmission fluid flush can help maintain a healthy automatic transmission, but it is not right for every vehicle. It generally makes sense when the fluid is still in reasonably good condition and the manufacturer recommends it. It can be risky for very high-mileage transmissions with old, degraded fluid that has never been serviced. The best first step is to check your owner’s manual and consult a qualified transmission or automotive technician.