We had a coolant discussion last summer, I think it was. There had been
a two-part editorial in
one of the big US magazines (I'm thinking Car and Driver, but maybe it
was Automobile). Anyway
the editor talked with a researcher at Zerex. The brunt of it was the
'good stuff' for our old cars
was, surprise, Zerex G06 or some such. I looked around for it, but
didn't find it. But I only hit
Fleet Farm, Checker, Autozone and the like.
Paul.
Rick Fisk wrote:
>James,
>
>The green stuff is safe for aluminum engines and works great - as long as
>you change it every two years. The green stuff has a silicate type
>corrosion inhibitor added that is sacrificial. After a couple of years the
>corrosion inhibitors are basically gone. The orange stuff has an organic
>acid based corrosion inhibitor that is basically good forever. The big
>problem may be that if you had green in your system and then drained it and
>installed orange the residue from the green will have nullified the
>corrosion protection of the orange. The silicates from the green
>contaminate the orange and it's corrosion protection is reduced.
>
>I gleaned this info from another forum I subscribe to - it was posted by a
>GM engineer with much design experience on aluminum engines.
>
>Rick
>'59 Sprite
>'65 MGB
>'90 Allante
>
>----- Original Message -----
>From: "james" <jhn3@uakron.edu>
>To: "Bullwinkle" <yd3@nvc.net>
>Cc: <mgs@autox.team.net>
>Sent: Saturday, March 01, 2003 2:49 AM
>Subject: Re: Coolant
>
>
>
>
>>Blake, are you saying that the green stuff is safe for aluminum?
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