by 
The Curious Bag
-
<h4 class="dechead">On One Hand: Change Every 30,000 Miles
Most car owner manuals recommend you change your transmission fluid every 30,000 miles, especially for older model cars, just to be on the safe side.
On the Other: 50,000 Can Be Acceptable
Most newer cars don't actually need to have their transmission fluid changed until they hit the 50,000 mark. Many vehicles are using extended life fluids that can last quite longer. If the fluid appears to still be brown or reddish, it is probably fine. Dark and dirty fluid is a sign that it is time for a change.
Bottom Line
To be on the safe side, change your transmission fluid every 30,000 miles, unless you have a newer model car. Of course if you have invested in an expensive new vehicle, you might not want to take chances with your transmission just to save a few bucks. Transmission repair can be costly, so think carefully before pushing the fluid to 50,000 miles.
Source:
RELATED QUESTIONS
Copyright 2023, Wired Ivy, LLC