Hi, The FE is good in my case.
and I normally reset the FE whenever there is a change in the route pattern. like when I am running only in city and I have to go for a trip I reset it at the beginning of the trip.
like in the recent pune-dadar-borivali-dadar-borivali-Pune trip via expressway I got an average FE of around 16+ (as on the MID). this trip included AC, Non AC, bumper to bumper traffic of Mumbai, Expressway, light traffic, ghats etc.