Revealing its 2011 CHEVROLET SILVERADO
HD at the Chicago Auto Show this week, Chevy is the last of Detroit's three to announce its plans for a revamped range of heavy-duty pickups. Like Ford
and Ram, Chevy puts the emphasis on revised diesel engine technology because new rules coming into play force all contenders to dramatically reduce emissions for 2011. All employ urea-injection or what's become known as DEF (diesel emissions fluid) in the exhaust stream to achieve the goal, and all are boasting that they've not only cleaned up what comes out the tailpipe, but they've also upgraded performance and fuel efficiency.