Not to fuel the fire (no pun intended), a couple of paragraphs from a USA Today article last month on the Ram 1500 and the V6/ V8 mileage "speculation"
(that's bold and underlined).
This gives me some hope on some good numbers coming from gas engines. I'm still thinking about the diesel engine, but with a spread of $.80 a gallon, it'll take more than free car washes, ice cream, ....
To keep up, Chrysler Group updated its 2013 Ram, the marquee mechanical modification being an eight-speed automatic transmission. It's standard on V-6 models, and boosts highway mpg as high as 25 mpg. Chrysler loves to point out that the rating is better than the Ford F-150 EcoBoost V-6's 22 mpg and also tops the F-150 base V-6's 23 mpg
and (for possible Hemi buyers)
But not everybody wants a big Hemi. Maybe.
The eight-speed will become standard on some Hemis in January, optional on others. Chrysler hasn't set all the details yet. Fuel economy of the Hemi with eight-speed isn't yet confirmed, but Chrysler insists it also will outdo Ford's EcoBoost V-6.