Hello, I’m new to this site. I had an eco diesel when it first came out in 2014. Upgraded to a 2016 (more bells and whistles). Love it and the gas mileage. I owned a 2004 Ram 1500 but gas mileage was 17.5 on the highway, city about 14. First trip to Missouri in my 2014 eco was 29mpg. I now get 22-23 in the city and 27-29 on the highway depending if I keep my foot out of it.