RAM 1500 EcoDiesel sets new record for MPG

Payback isn't really that big of a deal. You will get some portion of the diesel option cost on resale. Same as buying a Laramie over an ST. Only issue is the higher price of diesel fuel as opposed to reg gas. Where you live will determine how that pans out over several years. Some places have a wider spread between the two fuels. For me if I were to by a diesel as an everyday driver it would be a PITA because the closest diesel station is sky high. That would mean I would have to get filled up out on the road all the time if using it for work.