Originally Posted by SoonerDoc
beer should be cold when you carbonate, not "on the back of your car in the sun" warm.
Hmm, first time I've heard that.
I can think of lots of reasons why you shouldn't drive while hooked to Co2, but not because it's bad.
The first REAL reason that comes to mind is it's illegal... high pressure tanks need to be transported with the reg removed, the valve turned off, and the protective cover in place.
Personally, I carb warm.
The beer absorbs Co2 better when warm, and my rutine is to carb at 68F and 30psi for 24 hours. Then place in the fridge at serving pressure. 24 hrs later it's close, and within a couple of days it's perfect. YMMV.