Hi List, Here are my dumb questions: How (where) do I put more transmission fluid in my car? Can I check the level or do I just fill until it is completely full? How about the rear diff do I have to refill that at times and how do I do that? Thank you in advance, Shawn Olsen Clarkston MI 95 S6 MTM (120k) 91 200q20v avant (222k) 96 A4 2.8q (103K)