i purchased zero meter mehran, and its average was around 14 15 km /l, and i think that now a days traffic jams and other thing do effect millage , where as these day there is a serious shortage of cng, and it might permanently be disappeared , cars with efi engines and with cheap prices,can perform better, me currently using nissan 93, 1.5 twin cam its also giving a millage of around 14/15.