I'd want to wait at least 5 years to see if the light duty diesels have any where near the reliability and durability of the diesels in the 3/4 and 1 tons. Ford has put out some dud diesels in the full size trucks, I'd not want to be their guinea pig for the light duty diesels.
Unless Ford has worked some aerodynamic magic, color me highly skeptical of a 30 mpg truck.
