I bought my Civic EX on Sept
I bought my Civic EX on Sept 5, 2016. Average mileage is 26.5 - 27. The low field light turned on around 265 miles! It is worst then an electric car! I used to drive a Toyota Yaris, the mileage was ~35miles. Can run 380 miles per tank.
I took it to the Honda Dealer to check whether any problem they said that if the service light not on, there's no problem and no maintenance required. They refer me back to Honda.
Someone should organize class action again Honda. They are not honest in advertising the fuel economy performance.