Jay - when you change your thermostat would you be good enough to take a few pictures and do a write up? I can then link it into the DIY Guides sticky, and it will then help the next person who asks the same question, and will be karma for all the help you've received from this forum in the last couple of days.
wow this is really interesting .. learning something .. so air con on does not warm your car up properly .. ??
I put on my heating when i see the coolant temperature rises as i know il get instant heat .. is that bad?