When to change rear differential fluid?

Thanks for the link - we are at 60k on our 16 CX-5 and I havent done either (Tcase or Diffs).

I called my local dealer this past spring and they told me neither need to be changed and that they dont usually do it unless there are problems.

I thought it was odd at first but then trusted them because I figured they werent trying to sell me something I didnt need.

Luckily our CX-5 is used 90% highway so I guess we should be better but I still should look into getting it done next weekend while doing the oil.
 
Just did it in both of my CX-5 @ 45K. Save time and skip it. It is probably last oil change CX-5 needs. The fluid was very good.
 
Follow up. 60k after my first change at 44k 4 years ago (so at 104k miles now) Rear diff was again clean and golden. Front transfer case was pretty dark and thin again. Trans wasent blue anymore but wasent horrible looking. I did notice on a short trip the trans is shifting better for sure much tighter/snappy
 
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