No issues with my Ecodiesel and as far as fuel economy my Eco makes 30 MPG all day at 65 mph the best my brother can make in his Hemi is 22 at 55 mph! Mine is a 2015 with 3.92 gears and his is a 2016 with 3.55 gears. I tow a 6800# boat at 70 mph without any issues whatsoever.
BTW pay no attention to the blue troll, the so called scandal affected 2014 to 2016 Ecodiesels not the 2017 and 2018 trucks. I like mine so much I might get a 2021 best in class towing, torque and fuel mileage for the 2020 Ecodiesel coming out in the fourth quarter of this year.
Don