I'm sticking my neck out here because I can't supply a link to my
information source but I'll quote it as best I can.
Armorall accelerates the failures of plastics.
Initial statements regarding this were submitted by a fleet truck operator
that had one employee that maintained the interior of the vehicle he drove
daily with Armorall.
The balance of the much neglected fleet still had very good plastic parts
after five years of same type service but the Armoralled vehicle had
shrinkage and cracks in the plastic as well as some gummy surface areas.

Stan Wilder

----- Original Message -----
From: "John Runberg" <jrunberg@MAC.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Friday, April 30, 2004 9:29 AM
Subject: Re: Any detailing tips?

> There's a nice long thread in the archives about Armor All. IIRC, it
mostly brings the oils in your plastic to the surface and doesn't really add
anything back in. Eventually there are no more oils and things begin
cracking. Go to an hiking/kayaking shop and ask for 303 Protectant
(www.303products.com/)- this stuff was spec'd by Boeing for maintaining
plastic surfaces. It adds oils back into the material instead of leaching it
out (also adds UV inhibitors, IIRC). Not cheap, but a it works well and a
little goes a long way.
>
> john
>
> > I've been trying to learn this too... I do recall a somewhat recent
> > thread about how Armor-All is detrimental to plastics over time. I
> > don't remember this being verified, but I haven't used it yet.