I would recommend the PENTOSIN blue coolant from Germany.
It comes in 1.5 Liter bottles and it would take about 6 to do our vans.
Way cheaper than the dealer stuff.  Last I checked it was $48/gallon at the VW dealer.  It cost just as much for the red coolant for the Audi and Passats.

www.vanagain.com sells this at his site
Part Number : ZVW237105*      Category    Type of Van 
     Coolant System     86-92 2.1l Vanagon  
Blue Antifreeze for Waterboxer engine (Dealer recommended) 1.5l bottle. 
This is the real VW recommended blue coolant for the waterboxer engine. 1.5l bottle. 
         
         
   Price: $10.00  / Bottle
      

I could not wait for the shipping so I was able to find some locally and picked some up for about $8/bottle at the following car parts place. They normally stock 6 bottles on their shelf.  You may have one in your town since they are national.  Or get it from Ken at Vanagain.

Foreign Auto Parts Inc
1281 Saint Paul St
Rochester, NY 14621

(585) 325-1650

Cheers,
Joel

----- Original Message ----
From: Jim Quan <full360@GMAIL.COM>
To: vanagon@GERRY.VANAGON.COM
Sent: Tuesday, October 2, 2007 12:30:01 AM
Subject: Coolant recommendations

List, other than the blue VW stuff, what coolant would you recommend
my 1991 Syncro Westy?

Jim
1991 Syncro Westy

       
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