We tow a '2016 Econ RDS 15' with a 2012 JKUR. 3.73 gears, auto, and actual 32.25" tall tires. We use a load equalizing hitch and have electric brakes.
I keep speeds between 50 & 55, our fuel mileage hovers between 13.5 & 14.5 mpg. I use the towing tuning profile in the SuperChips device.
This...