At 11:18 PM 12/2/2004, you wrote:
>please tell me what the "blue stuff" you refer to is.
>I have always used prestone plus distilled water in the ratio described in
>the manual.
>fortunately the previous owner kept good records and took good care of the
>van.
>thanks for your help.

"blue stuff" is the blue non-phosphate coolant from the VW dealership made
by Pentosin. Really, any nitrate, amine, and phosphate free   coolant is
probably fine, but a lot of folks are paranoid and spend the extra money on
the blue stuff, just to be sure. I prefer it because it comes in 1.5 liter
concentrated bottles that fit under the seat better than 1 gallon pre-mix
bottles.

John Bange
'90 Vanagon "Geldsauger"