DETROIT – Stop/start technology will be standard on the 2015 Impala base 2.5-liter ECOTEC® engine, an addition that improves the vehicle’s city fuel economy by nearly 5 percent, or one mile per gallon.
The Impala comes standard with a four-cylinder engine, which currently accounts for more than 30 percent of Impala retail sales. It offers customers higher mpg city ratings and a more affordable entry price into the segment than six-cylinder competitors.
Stop/start shuts down the engine in certain driving conditions to reduce fuel consumption. The technology is becoming more prevalent worldwide. A recent report from Navigant Research predicted worldwide sales of vehicles with stop/start technology will grow from 8.8 million in 2013 to 55.4 million in 2022.