If you dont know if it was changed or not, i would just do it to make sure. I just did mine and it was a little brown, i have 68,000 on my car. The drain and fill plugs are in the passenger side of the tranny. Just take a 3/8 ratchet and put it in the hole. It's a perfect fit, they will be tight though so you might hafta put some elbow grease into it. Make sure you can get the fill plug loose first before the drain plug, otherwise you could be screwed. An easy way to fill the tranny is to fill it up throguh the shifter but you would have to take the shifter out to do that, if not just see if you can get it in the fill plug. It's a bit tricky because of the tight space. Good luck