Ecodiesel: 19.46 MPG Towing 7,020 lbs.
dieselpowermag.com: Ram 1500 Ecodiesel vs. Ram 2500 CTD comparison (dated Feb 24,2014). dieselpowermag.com link In this comparison the Ram 1500 Ecodiesel got 19.46 MPG towing a 7,020 lb. load on...
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I would assume that testers would hand calculate or use some form of diagnostic equipment vs. the trucks computer to accurately calculate mpg's.
