97% of US buyers opted for 2.5L stop/start base engine on 2014, 2015 Malibu
Green Car Congress
JULY 23, 2014
All contribute to EPA-estimated fuel economy ratings of 25 mpg (9.4 l/100 km) in city driving and 36 mpg (6.5 The stop/start system in the Impala improves city fuel economy by 5%, or one mpg for an EPA-estimated 22 miles per gallon (10.7 The 2015 Impala is available for sale now. Engines Fuel Efficiency Vehicle Systems'
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