Originally Posted by Chris L.
My 07 owner's manual says you never have to do anything to the manual transmission.
Yes the Manual does state no maintenance and lifetime fluid for the manual tranny.
I don't recall if it states a 100k fluid service in the Repair documentation, but I read a number of times from the local Forum experts that it's a good idea to perform a 100k fluid service on the manual transmission.
I would also do the Rear Diff at the same time.
At 100k, the tranny and diff would probably welcome a clean batch of fluids, and new spec fluids certainly couldn't hurt...