Currently have a 2014 High Country with the 6.2 6 speed. Just about to hit 119k miles. I've done all the regular maintenance (diffs, transfer case, plugs, wires,oil changes, etc) only major thing I've had to do was the radiator and thermostat because of the small cracks that the 14s get. I've definitely not been easy on it either. I've done air box mod, mit tube, Kooks headers with catless y, Corsa sport exhaust, black bear tune. Hope to do cam and heads soon. Also I've never had a catch can on it. Runs perfect and curious on how many miles I can get out of the stock motor and trans. My interior is holding up amazing, not even a tear in the seat like the older generations. Exterior is good just the normal dings that are inevitable.