[s-cars] Gelling coolant

[Gísli Óttarsson]

Thanks, all, for the input.  A thorough, chemically assisted flush will be
performed post haste.

The sludge in my expansion tank is still quite reasonably runny.  It is
definitely more pink than brown.

I am relieved that there is relatively general consensus that this is due to
the mixing in incompatible fluids, rather than being attributable to some
malfunction.

Gisli


On 4/16/07, David Kase <davekase at pdqlocks.com> wrote:
>
> FYI, I got a nasty coolant system cleaner from a auto supplier a few
> years ago.  This stuff had an acid that you ran through the system, then
> you had to flush with (the included) neutralizer and water before adding
> the new coolant.
>
> I call it "nasty" because it seems pretty damn strong.  I believe it was
> compatible with all system plastic and such but I did two additional
> water flushes to be sure.
>
> If you can find this stuff, it might be your best bet.  It was in a
> yellow cardboard canister.  The components were in powder form.  I will
> try to see if I have one laying around to provide more info.
>
> Dave Kase
>
>
>
> Tom Winter wrote:
>
> >On 4/16/07 3:04 AM, "G?sli ?ttarsson " <gislio at gmail.com> wrote:
> >
> >
> >
> >>I have noticed that the coolant in the expansion tank has a strange
> texture
> >>to it.  It is almost like it is beginning to gel.
> >>
> >>
> >
> >
> >This sounds suspiciously like your system has incompatible coolants that
> may
> >have mixed, maybe only a small amount. But something is funky for sure.
> >
> >Regardless of what it is, you need to flush the system immediately
> because
> >if your coolant does gel, then it is VERY VERY BAD.
> >
> >At least I'd flush the system immediately. There's plenty of reasons to
> do
> >this given the symptoms you've described and the only reason not to at
> this
> >point is laziness (which is an attribute that I'm proud to have in
> copious
> >amounts). But seriously, don't be lazy on this score.
> >
> >Tom
> >'95 S6
> >
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