I use ZEREX Extreme 4/50. It is Phosphate free and made by BASF, I believe the same company that makes it for VW. Rick K. -----Original Message----- From: scirocco-l-bounces@scirocco.org [mailto:scirocco-l-bounces@scirocco.org] On Behalf Of David Utley Sent: Friday, January 09, 2004 4:18 PM Cc: scirocco-l@scirocco.org Subject: Types of coolant to use...