> But I'm using distilled water and VW Autobahn coolant and my
> WaterLeaker started leaking at 72K miles....

My dealer put in some cheap green stuff under warranty at about 5,000 miles
when the water pump died.  In my ignorance, I have used the cheapest green
stuff along with tap water ever since.  But then, at 70,000 mine started
leaking.

So, I still use the cheap green stuff.  With less than $5 worth of
AlumaSeal over the years, I am now at 110,000 and no puddles.

Mike   '84 GL   '58 Isetta