Chevrolet makes Stop/Start standard on base 4-cylinder in 2015 Impala; 5% improvement in city fuel economy
Green Car Congress
MAY 22, 2014
Stop/start technology will be standard on the 2015 Impala base 2.5-liter For the 2015 model year, the Impala will be available with two powertrains, a standard 2.5L The software also prevents the system from engaging if the car does not reach 6 mph (10 km/h) since its last start—a feature for stop-and-go-driving conditions.
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