For what it's worth, here's what the BMW enthusiasts
have to say about the topic:
http://www.unofficialbmw.com/all/carcare/all_dont_use_silicone.html

I seem to recall finding something similar on some
kind of Harley website.

As for those who say they've used Armor-All
religiously for twenty years with no problem, that is
exactly the assertion of the Armor-All Sucks theory:
if you're gonna use it, you MUST use it religiously to
keep your vinyl looking good. Occasional use serves
only to dry it out without repeated applications.

Not saying any of this is true, just clarifying the
stated theory. Nonetheless, I use the non-silicone
polishes, and only occasionally.

Jeffrey Earl
1983 diesel Westfalia "Vanasazi"
http://www.vanthology.com/

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