It's normal if you live in Karachi. Fuel economy is best for people living in Islamabad due to long stretches and less braking. Calculate your fuel economy figures by filling petrol to the brim and drive that tank. Fill petrol again to the brim and divide total number of liters filled in with the amount of kilometres you have driven. You will get exact fuel economy figures like this. My coroalla 1.8cvti was showing 15.2 from Lahore all the way to chakri. I refeuled at 300kms, and it stopped at 17.5 liters. My actual fuel economy figure was 17.1km/l at 120km/h cruise.
