I have not averaged less than 17.0 MPG with my hemi, new one.. I was getting the 13 MPG with my 12, but this one is a bit better. If you can keep your foot out of it.. but remember, that is a v6 vs a v8.. a v8 with MDS, multiple displacement system.. that is why you have to keep the foot out of it. I have owned a 97 Ram, 03 Ram (first Hemi) 12 Ram, and now 19 Ram.. all have been great trucks, with little to no problems.. I do all my own maint on them. 97 with 167000 miles, 03 with 203000 miles, 12 with 116000 miles.....