23 mpg Ram Cummins 2500

23.21 MPG from a 2017 Ram/Cummins. 65-mph highway baseline test, Sept. 5, 2017 222.7 miles, 9.593 gallons 65-mph freeway/highway test light/no wind A/C on Tires: F 60 R 40 cold Regular cab, long bed, 7,400-lb. GVW Newer diesel trucks are not as efficient (due to emissions systems) as previous generations? Maybe. Probably. Though it depends on the exact year, model, and … Read More