Thanks to a bunch of help from this forum, my Rubicon is very highway worthy. My wife has just driven it from Arkansas to SW
Colorado while I pulled our travel trailer with our GMC. That is a 1000 mile journey.
High Temps have been in the 95-100 range.
For the next three months it can be a jeep, with great clearance for these 4wd roads. She did the driving so we can have a summer and fall of fun.