I had the same experience today. I went from 85 miles range to low mi indication in 50 miles traveling over passes traveling on Hwy 2 in WA.
I drove 30 miles on low mi range, from 10, 8, low and pulled in where I thought that I filled up on fumes. The tank only took 18.5 gallons to full so...
I saw my notification today for my '18 JLUR. I've not noticed any wandering per se (It's a jeep FFS vs my RRS) but I do wish that they'd fess up on the idle surging when in auto AC mode and in warm temps, That's annoying,
As not a particularly tall guy but with let’s say a ‘robust’ build :turkey: I definitely noticed the difference between the JKU and 2018 JLUR that I just picked up.
With the JK there was more room between me and the steering wheel when it was adjusted with seat all the way back and wheel fully...