I read this topic quite a bit here so here's PUT.com attempt to pencil whip the cost of ownership comparing some gas engine trucks to the new RAM Ecodiesel truck. Link Enjoy...
The day I gotta worry about ownership cost, whether its gas or diesel powered is the day I sell em both and run a team of horses and a covered wagon to go Rv'ing... but then I suppose we'll be arguing, which is better for axle grease... whale blubber or bacon fat, horses or oxen... how many bushels of oats per mile or how much grass per kilometer.