Autobahn Blue anti-freeze needs a replacement

[Huw Powell]

> I guess on second thought that Autobahn Blue is the only way to go.
>
> Now a quote from the Official Factory Repair Manual by Robert Bentley, for
> the 80,90 and Coupe Quattro. 1988-1992
> Re: Vehicle Care section pg. 14
> “Audi 1990-1992 models: The cooling system has been filled at the factory
> with a permanent coolant which does not need to be changed.”
> Then why am I changing it? This seems like a very bold or misleading
> statement by Bentley. What does Audi say? Same as above with “The cooling
> system is sealed and should need very little maintenance.”

"very little," as in first owner = 50,000 miles, coolant drain at
60,000... what *do* they spec for a change interval, anyway?  The stuff
certainly lasts a long time, at least.

> Do we really need to drain and replace a very expensive fluid every few
> years? Can’t we just top off the system as required?

I just don't see an $18 jug of coolant every few years (or even every
year) as meeting the description of "very expensive".  I spend more than
that changing the *oil*, and that gets done about 5-10 times as often as
the coolant.  I burn of a couple hundred dollars in tire every year.

Um, a tank of gasoline runs in the $30 range these days.

Guess I'm missing the point here...

--
Huw Powell

(PS, is the war over yet?)

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/