Has anybody tried cooling system stop leak? In my experiences the powdered alumenum type has always worked well. Even on a radiator with a plastic tank! But I have never had a leaking heater core. Roy 67 Crown FDHT ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm