Mike,

Keep a good eye on it. I don't know about Sierra's composition but the
regular stuff like prestone and havoline don't react well together. You get
little lumps of brown crud and the color of it turns brown and it does nasty
things. If you see this happening get it out and totally flush it good. I've
seen it happen.

Joe

----- Original Message -----
From: "mike miller" <mwmiller@CWNET.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Friday, January 25, 2002 1:07 PM
Subject: Mixing anti freeze

> David B. and list,
>
> I inadvertently put some green antifreeze, Sierra brand, in my van when I
> had filled it last time with orange, Havoline.  My friend who is a
chemical
> engineer, but not one that specializes in this kind of stuff, doesn't
think
> that mixing ethylene glycol and propylene glycol will hurt any thing.
>
> You know anything about this kind of stuff?
>
> Mike
>