As with most next-generation clean diesels, Mercedes-Benz is relying on both urea (AdBlue) injection and particulate filters to meet both U.S. and European emission standards. BlueTEC does require low-sulfur diesel, which is currently available nationwide.
One of the challenges facing all diesel engine producers will be the rising cost of fuel. Most consumers will look at the 15-20 percent higher cost and be put off. Most will not consider the fact that in the case of the ML320 compared to the ML550, the former gets almost 50 percent better fuel economy. It looks like it's time for some creative marketing person to teach Americans how to do math.
Mercedes-Benz 3.0-Liter Bluetec
*ArchitectureTurbocharged, 72-degree, dohc, four-valve per cylinder V6
*Block/Head
Aluminum alloy
*Compression ratio
16.5:1
*Redline
4500 rpm
*Torque
398 lb-ft @ 1600-2400 rpm