Chevrolet makes Stop/Start standard on base 4-cylinder in 2015 Impala; 5% improvement in city fuel economy
Green Car Congress
MAY 22, 2014
liter ECOTEC engine, an addition that improves the vehicle’s city fuel economy by nearly 5%, or one mile per gallon. Impala with stop/start yields an EPA-estimated fuel economy of 22 mpg city (10.7 The Impala becomes the second vehicle in Chevrolet’s US. engine with stop/start, and a premium 3.6L
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