I clean my exhaust tips with an apc, right now I am using ARO, scrub them down with a soft brush and hose off. Then I use wenol red and a wool polishing ball on a drill. I finish with collinite metal polish.
As a vw guy it always hurts to hear this about the TDI's. Problem is that you do hear these stories. Some people have over 350K miles on their TDI's while others had nothing but problems.
Thank you guys for all the kind words. Sandy was a destructive storm and the noreaster yesterday didn't help. Amazing, out of all the forums, it seems like the best people are right here on autogeek.
Many years ago a friend introduced me to ONR. I thought is was a gimmick. He said if I didn't like it he would buy it off of me. After trying it, I buy it by the gallon. I used OSW for the first time today and this stuff is amazing.