The Ram with the EcoDiesel 3.0L V-6 is rated for 240 hp and 420 lb-ft of torque. This is the premium engine for the Ram 1500 and cost $2,850. We have often thought that a small diesel would be a slug compared to a happy healthy American V-8 gas engine, but we were wrong. This little diesel is peppy and fun to drive. It’s not a 30-mpg engine, but it is a mid-20s and maybe higher if you drove like a granny. Of course, a similar Hemi V-8 truck is rated at 15 city and 21 highway, so the diesel is better on fuel, but it’s a more expensive fuel.