Had a 2013 FX4 with the 3.5. Probably the worst vehicle I've owned. Rear defroster quit, 3.5 was erratic and laggy, the underside had more rust than an abandoned shipwreck, all 4 shocks and struts leaked and had to be replaced, blend door actuator, both bumpers were repainted due to rust bubbles, noisy belts, parking brake disintegrated. I'm sure I'm forgetting something. This was all on a truck that had less than 60k, and was only 4.5 years old when I got rid of it. I took care of it, kept the salt off of it so there's no excuse for that new of a vehicle to have rust issues. I can only imagine what it looks like now. My brother has a 2016 with the 5.0. I've driven it several times and it feels like a much better truck in every way.