I have Civic EXi 2005(CNG). I always used to go to Islamabad by using CNG as fuel but this time i decided to go on Petrol and MASHALLAH my car gave me a superb average of 13.35 kmpl(581 kms in 43.5 litres of petrol). There were 4 persons on board alongwith luggage and i drove at a speed of 170-180 kmph for about 90 kms. Rest of the time, i was driving at a speed of 120-140 kmph.