I get 12.5 on 1.3 aspire AT. Drive around 50km daily in hilly area with AC on 1. use yoko advan 185 tyres and shell helix ultra 5-40 engine oil with genuine honda air and oil filter. oil change interval is 8000 and tyre pressure checkup after 3-4 weeks (32 front and 30 back).
on highway it gets to 14-15. My foot is slightly heavy on pedal and control of city on turns is quite good. everyone know about stiff suspension of city but i am now used to it.