All tire manufacturers advise not to use any sealer or protectorants on
the sidewalls. The tires are loaded with al the oil needed for their
design life. Tires that sit suffers as the outer casing will dry out
without the sidewalls being worked to push the additives out. Most
sealants will trap the outer layer of dirt and grim into the tire causing.
Most tire manufacturers will also warranty ozone cracking for up to 4
years after purchase or manufacture date (without receipt) unless tire
protectorants have been used.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Mike S
Sent: Wednesday, September 03, 2008 5:41 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Oh No, not another tire thread!

>On Wed, Sep 3, 2008 at 1:39 PM, Jack R. <jack007@comcast.net> wrote:
> > BTW I would think that regular treatment of the tires, with
> sealer/shine
> > stuff, would help block the impact of ozone and the breakdown of
> the rubber
> > side walls.

At 04:48 PM 9/3/2008, Neil2 wrote...
>I seriously doubt that, after what I've learned about Armor All here,
>recently.

You don't want to use Armor-All, nor was it mentioned. 303
Aerospace  Protectant is Good Stuff. No silicone. Great for tires (but
don't use any protectant on the tread).

http://www.303products.com/tech/index.cfm?fuseaction=product.display&Produ
ct_ID=288