The color is added to the coolant more to identify the
product manufacturer and it tells you very little
about what it is or is not.   It is true that most
phophate containing coolant is green and mixing
different color coolant in the short term will not
make too much difference. Green is often the cheapest
stuff and the easiest to locate.  Mixing one color
with another color will shorten the life span of the
long term coolant if one color is not long term.
Most important thing is to change the coolant to
something you can live with when you have the time.
       gary
Date:    Wed, 11 Sep 2002 21:36:09 -0700
From:    Doktor Tim <doktortim@ROCKISLAND.COM>
Subject: Re: unidentified coolant

I would top up with water if it's just for a few days.
Even mixing
coolants
for a few days is of little concern. What is important
is the service
is a
COMPLETE drain/rinse/replace.

Green is NEVER phosphate free, unless it's a mix of
blue
VW/Audi/Porsche/Autobahn/Jaguar and yellow Mercedes.
Same stuff from
the
same Basf Corp. vat just different tints.

At 09:10 PM 09/11/2002, you wrote:

>   I have no idea what kind of coolant the PO put in
>there: it's green, but in our pre-sale discussions he
seemed acutely
aware of
>the requirement for phosphate-free coolant.
>So: what would you top the tank off with?

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