Help! I have both Pentosin 11s and 7.1 in my steering/brake system. My car is a 1991 200q, 20 valve. I need to know the following: 1) what is the correct Pentosin? 2) what damage can be caused by them being mixed in my system. 3) what is the best way to flush out the bad mixture, and put in the correct Pentosin. Thanks for any help and advice! Dave Puterbaugh deputer@msn.com