About 1/3 of Class 3-8 trucks in US equipped with advanced cleaner diesel engines
Green Car Congress
JULY 3, 2014
About one-third of all medium- and heavy-duty commercial trucks registered in the United States (2.9 The data includes total registration information on Class 3-8 trucks from 2007 through 2013 in all 50 states and the District of Columbia. million of 8.8 grams per brake horse-power hour (g/bhp-hr).
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