Study finds 6.3% spread in fuel economy obtained with maximum and minimum rolling resistance tires
Green Car Congress
JANUARY 8, 2016
A new report by University of Michigan Transportation Research Institute (UMTRI) researcher Dr. Michael Sivak has found a 6.3% market (maximum speeds for each of these types of speed-rated tires are 118 mph, 130 mph and 149 mph, respectively). mpg (RRf at 8.1 mpg (RRf of 12.1 mpg (RRf at 9.9
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