My New Ram 2500 6.4 MPG Update
Posting this because people ask about the mileage: First 300 miles: 12.2 mpg mixed driving. 2 days were in below zero weather and gas had 10% alcohol mixture.
Forum Discussion
My 5.9L Cummins will get 20 - 21 mpg @ 65 mph hwy pretty regularly in summer. Winter is more like 18 mpg. I have gotten as high as 24 mpg under ideal conditions (mild temps, no wind, no A/C needed, flat terrain, etc). I expect the 6.4L Hemi to do about 30% less in all conditions.
