Lafafa Bhai , Buy a OBD scanner and monitor the parameters Live. 14.5 kpl is a poor performance from an 1.3ltr engine. The following picture is the snapshot of " torque " App connected to Civic ECU via blutooth Adapter.
Car : Honda Civic 1.8 iVtec
Transmission : Automatic
Journey : 225km on Motorway
Average Speed : 90-100 kph
AC : ON 80% of the journey