Quote:
Originally Posted by bassman29
Hello
I have a 2017 4runnder SR5 with only 87500 miles on it. I did not change the transmission oil at 60K and I am concern if I change it now that I may cause more damage. I have I heard that once you past 100k you should never change the oil unless you have done it at 60k. I am not sure if I should add transmission oil change to my 90k
thx
bassman
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This ^^^ is a wive’s tale spread on the internet by ignorant owners and supposed mechanics. At worst you could argue that an external machine used to flush the trans could dislodge and circulate sediment that then clogs valves or solenoids. It’s all horseshit. I did our first at 120K on our 2014 and probably need to do it’s third at 331K.
