The car has around 1100 miles. Started the engine this morning and thought it ran rough for a few seconds, but didn't think anything of it until during the drive to work, around 15 minutes, no matter what I'd do, I couldn't get the ECO light to light up. Speed up to 60mph and slowly back off, take the foot off the accelerator, etc. No matter what I did the ECO light would not light up. By the way, this is Chicagoland. Flat as a pancake.