Honda Civic Exi manual, 2003, 162000 kms driven, 12-12.5km/l in city with 50% AC, I live in suberbs of Lahore towards Bahria Town so 50% of my city drive is normally @70-80km/h, 14.5-15km/l with AC on long routes @ 100-110km/h, on CNG it gives 125-130, I have 60l cylinder and on long 170-175 @100-110km/h, mileage aslo depends upon your maintainence activities I replaced fuel filter two months back, throttle body cleaned a week before, plugs have done 10000 kms, tyres are 195/65R15, gear oil changed, timing belt replaced second time, new OEM shocks, mountings and tie rod ends installed planning to run it for atleast 2-3 years ahead in sha allah.