What Does The Eco Button Do?

Among the many strange and wonderful features many new vehicles now boast is a mysterious button marked “Eco.” In some cases the button may be labeled “Econ,” which is no less cryptic than Eco. Stop It! 5 Habits to Break for Better Gas Mileage You’ve probably surmised that pressing that Eco or Econ button somehow helps to improve fuel economy—or reduce exhaust emissions—but wondered how it works, and what the drawbacks of using it might be.

Read the source article at The Daily Drive