I too have a '14 diesel limited 4xx. Just a shade over 53000 miles - I average 25,000 miles per year. Zero problems, fuel economy is 25.6mpg in town, I can eek out over 30 during the summer months if I keep it @ 70 on the interstate. Summer months I also pull a 4600# enclosed V-nose 19' trailer, and still get a respectable 18mpg. Loads of torque, great seats and long legs for distance driving. If I had to find any fault - the rear interior space is limited, and that was before adding a ARB 37L fridge. I think I'll drive this one into the ground.