I think you should recall the windshield glass on the 2018 Rubicon JLU, had it for 2 days and a small rock caused a huge crack and this isn't the first case from what I found this is a huge problem
We have the 2018 JLU Rubicon with 35s. Went to Arizona and back to Michigan average mileage was about 19.7 MPG. Guess it depends on where you drive and what you do. This included about 12 hours of trails and rock climbing.
We got this with our 2018 JLURubi .we actually did t realize it .had to ask on another thread what something was .the parts were in the box with our soft top!