Pete, you would be better off starting a fresh thread in the Bodywork section to be honest.
That way as its technical you will rack up more posts. Also people tend to look more there than in the introducing section.
I can cut and paste my stuff over but if you start a new thread then i will move this thread across for you and add it to the new thread.
So start it here and call it something like Fresh Air vent rust or something akin to that. I will then move this thread so the info flows.
http://www.theminifo...-and-detailing/