Depends on the ambient air temperature.
9 months and cool
Don't lie in the sun too long. Stay hydrated. Stay cool. Wear sunblock.
Till u DIE BAHAHAHA
From 1 to 3 years.
It should hold in the cool air as long as you don't open it as much.
The duration of Stay Cool is 1.57 hours.
Pigs stay cool by rollin in mud
Enough too live off that's y we stay on the road so long
Because my plugs, points, and ignition wiring haven't been replaced in a long time, and please stay out of my truck from now on.
Five years at least if you keep it cool and out of the sun.
Stay behind the truck until you can safely pass. The last thing you want to do is pass that truck going up a hill unless the hill is so long as to have a passing zone.
Probably an hour or two! Or the food will spoil!