Sir, the fuel average has been an issue here in Karachi.
this varies from fuel pump to fuel pump. although the roads and karachi traffic are main cause, but the fuel quality from different fuel pumps makes the average worse.
try refuwling the tank from Total pump on shahrahe faisal oppsoite PAF meuseum, or the Total pump from Mukka chowk. i have personally filled from these pumps and found a great difference in pickup as well as the average, whereas normally i was getting it filled from the pump at zainub market always.
the car is alto ags, driven with normal foot, single person ac on all the time, city driven at peak hours in morning and evening.
the meter shows 14 to max 16 and doesnt cross 16 when filled from zainub market pump and the car behaves sluggish.
but the car goes over 17.5 when filled from the mukka chowk or shahrahe faisal pumps, the pickup also feels much better.
do try it. maybe u will feel the difference.