I know there is a thread a while back about the gas mileage and I have read them all I think. I have an Accord Sport with auto. 40 k miles-bought it used a few months ago. I have never seen on my gas mileage computer in the car anything near a 30 mpg average let alone 35-37 that many others report. We just did a 275 trip with 80% hwy. driving with the Econ button on. Some at 75 mph and some at 55 mph because of some bad weather. Mpg trip computer said 26.7 . That's not good for this car compared to what I have seen. I try to keep my green Econ light on as much as possible which means I am not hot rodding the car. The only thing I have changed from stock is a K&N replacement air filter which I put in every car I buy.