Zerex has a phosphate free ethylene glycol coolant, fluorescent yellow in color, as I recall.  I got mine at NAPA last time.
Of course, there is always the VW dealer, around $30 a gallon, but it is the original blue in case your van is blue and you want to color match.  The Zerex was $11 a gallon for the straight (undiluted) stuff, about the same as Peak with its unnamed ingredients.  But the Zerex has a complete list of the ingredients on the label.  mcneely

---- VJ <vljahn@SBCGLOBAL.NET> wrote:
> Hello, I have an an 85 Vanagon and was thinking of changing the old
> coolant, which at present is a orange/pink  color.  I was looking for
> Prestone PF,
> but can't seem to find it anymore. Any Phosphate free favorites that
> everyone likes ?
>
> Thanks,
>
> Bob

--
David McNeely