jpanhalt

CO is lighter than air and the exhaust smell would give it away. Pure CO might be a different story. I like the CO2 idea. But, that is just a chemist's thoughts. John

HarveyH42

Sound like a great idea. Have to ask around and see if one of these stores around here has some. We have it at work, but it's about a 40 minute drive, and it will be in the 90's by the time I get off work. Might survive the drive in a cooler, but not so sure about a car full of CO2 (it'll escape one way or another). Anybody ever blow up a 2-liter bottle with dry ice? It's awesome, and a little dangerous.

Hero999

Use polystyrene foam packaging to insulate the dry ice, keep the car windows open and you'll be alright.

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HarveyH42

Since I'll be traveling with a cooler of ice, might as well stop off and get some beer... Wonder if dry ice is to cold...