Like any other fluid such as engine oil, transmission fluid becomes less effective over time.
The top reason to change it is to keep your transmission operating at its best. Unless there’s a leak or a problem, some newer transmissions are designed to never need a fluid change.īut let’s say your car does need a transmission fluid flush as part of preventive maintenance. Actually, the first question is “Do I need to change my transmission fluid at all?” For the answer, consult your Hyundai Owner’s Manual.