Stop-Start Tech Improves Fuel Economy, Cuts CO2
AAA tested three vehicles equipped with automatic stop-start systems using the EPA’s “urban” driving cycle. With the automatic stop-start system engaged, the vehicles delivered improved fuel economy of up to 7 percent over tests with the automatic stop-start technology disengaged.
Based on these findings, these systems can improve fuel economy, saving motorists up to $179 in annual fuel costs, based upon driving 15,000 miles a year in a vehicle that gets 20 mpg with fuel prices at $3.65 per gallon.
AAA tested a 2013 Ford Fusion, a 2014 Mercedes Benz CLS550 and a 2013 Chevrolet Malibu. The AAA research was conducted with the Auto Club of Southern California’s Automotive Research Center.
Navigant Research’s 2013 automatic stop-start vehicles assessment projects that only 500,000 of the vehicles sold in the US in 2013 included an automatic stop-start system, but that number could exceed seven million by 2022.
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