Keeping Things Cold on the Road

I seriously doubt my fridge is insulated enough to keep things at a food safe temp over an 8 hour trip.

Maybe it's just me but answering a question without having tried it,just somehow doesn't seem right..I think we are all looking for experienced answers instead of I doubt or have never tried it but...

The question was:

Interested to know how long things in refrigerator stay cold while traveling and if anything in the freezer thaws out if we're on, say, an 8 hour road day. Just bought a TT and haven't used it yetInterested to know how long things in refrigerator stay cold while traveling and if anything in the freezer thaws out if we're on, say, an 8 hour road day. Just bought a TT and haven't used it yet..

My experience is if the refrigerator is cooled down prior to leaving and a frozen milk jug or bottle or bottles is used in the refer and an ice pack in the freezer,the stuff stays cold and frozen for at least 8 hours just as it would in a portable cooler we all use.

Of course like a portable cooler,the more you open and shut it lowers it's ability to stay at that temp.