My Ram is driven on interstates and if I keep my speed reasonable, I can consistently get 20+ mpg. Have had as high as 24 with a tail wind. For this size vehicle, this tuff looking truck is amazingly economical with gas. Getting ready to trade and considering something smaller but why give up full size luxury and ride to pick up 1-2 mpg, if that. Love my RAM and will probably by another, but not a Hemi. Get the 4.7 v8.