I think Ford just doesn't think it will be profitable here to make the diesel meet us standards. They are probably right though.
It would be good (I think) for all of the companies using rangers for delivery trucks and such, but the 4cyl does the job and lasts forever so I doubt many companies would cough up the extra money for a diesel. And as much as a lot of us would like a diesel ranger, most would rather buy a new F150 than a new Ranger with the cost of a diesel engine tacked on top.
What Ford needs to do is work on the 4.5L diesel for the F150/Expedition. I really wish US manufacturers would start making more passenger cars/suvs with diesel engines like good old VW. The hybrid fad is retarded since the turbo diesel cars are much more fun to drive and normally get the same or better mileage.
2006 F150 FX4 Super Crew - Bilstien 5100s leveled 2", 35" KM2s, 4.56 gears, Detroit locker, Eaton E-Locker, Traction Bars, AEM intake, Xcal 2
2010 VW Golf TDI 6MT