I personally use Zerex G-05, but according to Go Westy you don't need anything other than a phosphate free coolant:

http://www.gowesty.com/library_article.php?id=1040 

They remanufacture engines with a 48 month warranty, so if it works for them it should work for you.

Stuart

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Fuzzy :philippe
Sent: Tuesday, May 13, 2014 1:16 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Where do you get your coolant?

I've been getting it from Buslab, but at $37 for a liter, that seems a lot.

Philippe
'87 2.1L Vanagon GL Camper