by Seth Clevenger
Transport Topics
July 30, 2012
Heavy-duty truck manufacturers have improved the fuel efficiency of their tractors through a combination of new technologies, powertrain improvements, enhanced aerodynamics and efforts to reduce rolling resistance.
New Clean Car Standards: A Job Creator for America and Michigan 
How Fuel Efficiency is Driving Job Growth in the US Auto Industry 
Trucks That Work 
Summer 2012 Fuel Economy Analysis 
A Key Step to Ending America’s Oil Addiction 
Gearing Up: Smart Standards Create Good Jobs Building Cleaner Cars 
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