John Rodgers wrote:

> I use Dex-Cool. Used it in both my 85 GL W/1.9L and my current 88 GL
> w/2.1L WBX. No problems. BUT, and this is a BIG but, if you use it, you
> gotta drain and flush your system every couple of years. Like any other
> system using fluids of any kind, the stuff gets old, chemically changes,
> and ultimately can cause you grief. Just makes sense to flush and
> refresh in a reasonable period of time.

Also, I've heard that Dex-Cool should *not* be used in any vehicle with
a brass radiator.  (I don't think any VWs came from the factory that
way, but I've seen aftermarket brass rads for them.)  I've heard two
different stories on this -- that the Dex-Cool actually corrodes the
solder joints, or that it simply doesn't protect them from corrosion.
Either way, bad news.