[BiturboS4] Frozen S4

David Lau toomanycars at mac.com
Mon Nov 10 15:43:19 EST 2003

Not to beat a frozen horse, but according to the coolant labels I've read,
the freeze point lowers AND the boiling point rises (to a point) with a
higher concentraton (at least for ethylene glycol). I thought all new cars
started with a 50/50 mix for any climate. Not sure about this pink stuff
David J. Lau, The Brookwood Studio, Inc.  David at brookwoodstudio.com

From: Michael Kuriger <michael at isuzu-mods.com>
Date: Mon, 10 Nov 2003 11:35:52 -0800
To: DAK <dak at rochester.rr.com>
Cc: David Lau <toomanycars at mac.com>, Audi S4 list <biturbos4 at audifans.com>
Subject: Re: [BiturboS4] Frozen S4

The original question made it sound like he came from a hot climate
where the mix is weaker.  Sorry if I misunderstood.


DAK wrote:

> I've never replaced mine seasonally either. I think that the coolant
> packaging recommend different dilution based on climate. The point here
> is that he might have a weaker mix from the warm climate. Up here, I've
> always used 50-50. If you aren't sure what mix is in the car, it might
> pay to replace it.
> David
> David Lau wrote:
>> This is a first. In 40 years I've never heard of different coolant for
>> summer and winter; just change it every 3 years. Mine has survived
>> Michigan
>> with the same coolant for 2.5 years... am I that lucky??
>> David

More information about the Biturbos4 mailing list