MPG Concern

EPA tweaks fuel economy test to improve accuracy of mpg labels

3:37 pm U.S. ET | Feb. 23, 2015

The EPA today issued updated procedures for a critical part of fuel economy testing that some automakers have struggled with in the last two years. The update covers how automakers should calculate road load values in coast down tests, which measure the rolling resistance and aerodynamic drag of vehicles as they glide from 70 mph to a stop on a straight, flat track....
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Automakers await the details of EPA plan for mpg road tests

12:01 am U.S. ET | July 20, 2014

Automakers see merit in an EPA proposal that would require them to road test vehicles to verify mileage claims, but they are unclear on how the tests would be handled....
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