I have been looking into it. Mainly going on the fact that it says if used "hard" then you need to change it.
Yep, no dipstick on my '04 so basically I am trusting that it is OK.
I can't see any harm in putting a good quality fluid in there. I won't drop pan and change the filter, but with the pump style change you can get all new fluid in there.
Not sure if I will, but if I keep this one a while, I don't want that problem. If it had 200K on it, I might not change it...leave well enough alone and all that. But with only 100K I think it is a good move.