2005 toyota 4runner SR5 V6

Hi there I needed some advice. I have a 2005 4runner approaching 150,000 miles. I have never changed the transmission fluid. As I followed the owners manual which never required to change the transmission fluid. Should I go ahead a change the fluid at this stage. I have been told not to do it because it might leave a lot of residue from the old oil. Its my understanding the atf is long life if that has any validity. Thanks for your assistance.

 

Welcome from Wisconsin! I would change it.. 150,000 miles is long life. get the vehicle warm when you change the trans. fluid, this 'suspends' any residue/particles in the oil, drain it, refill it, and you'll probably get another 150K out it!

 

Yes change it.

 

Dealership service advisors are knowledgeable about fluid replacements and other service items needed on a 150k truck, costs nothing to hear what they say.

 

Welcome from Arizona!

 

Welcome.

 

I would change it…

Welcome from SoCal

 

Welcome from the center of the bourbon universe.
I would change it.