Autobahn Blue anti-freeze needs a replacement

[Al S]

Thanks to all that replied.

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.”
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?

Your thoughts.

Al Streicher
Rathdrum, ID.

1990 80 non-Q