Just purchased a 2018 Ram Laramie 1500 4x4 with EcoDiesel. Wanted both decent fuel economy and four wheel drive. Actually my fourth diesel, 84’ Delta 88, 82’ Mercedes 240D and my 99’ Dodge 2500 4x4. So far so good, have not taken on road trip yet for Hwy mileage but around town 22-23 mpg...