I use 303 Aerospace Protectent on interior vinyl. I tried it based on the info I found on Autopia.com - probably the best source of detailing information on the web.
http://autopia.org/
I thought I knew how to clean a car until I started to read the comments and see the great results these guys get. There are a number of pro detailers that post there. The apperance of my car has improved 100% since I started to post there.
Also thanks to everyone for the great Pantera data. I have been lurking here for a while. I am going to look at a 73 L tomorrow – wish me luck
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