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Uploaded on Oct 20, 2011
http://www.tirerack.com/a.jsp?a=HP5&u... Tires with an emphasis on low rolling resistance for fuel efficiency are becoming available in sizes to fit a wide variety of mainstream vehicles. One of the most recent is Bridgestone's Ecopia EP422 that employs technologies aimed at reducing fuel consumption and the tire's impact on the environment. But does it perform on the road, too?