selective catalytic reduction (SCR)
With some tinkering, it's possible to bypass emissions controls on diesel vehicles.
Six Possible VW TDI Diesel Fixes: From Software To New Car
"You have power, you have energy, you have emissions: You get to choose two of them." That's the conundrum facing diesel-engine engineers, as summarized by Don Hillebrand, the director of energy systems research at Argonne National Laboratory in Illinois. And the VW diesel emission cheating scandal...John Voelcker
Ford Super Duty Pickups To Offer Clever PowerStroke Turbodiesel V8
Ford's been around a long time; it just celebrated the 100th birthday of its Model T. Much of its green news these days focuses on its upcoming 2011 Ford Fiesta subcompact, the well-received new 2010 Ford Fusion Hybrid sedan, and its Escape Hybrid sport utility. But Ford had never designed and...John Voelcker