In my personnel experience TOTAL & CALTEX have the best fuel being provided to the consumer. Their fuels gives the best milage on any petrol car.
My Baleno 1300, gives me 510 - 530 kms on a full tank with CALTEX petrol in a city (With AC) as compared to 450 - 475 kms on PSO fuel. (Data for over 4 months with only myself driving)
PSO has the worst fuel average, while Shell is behind PSO.
All pumps who deny checking of fuel quantity by the consumer are 100% fraud.
Also avoid any road side pumps, out of the cities as they are almost 99 % doubtful.
PSO is earning alot because of its Fuel card scheme, and most of the companies spend hundred of thousands of Rs on monthly fuel bills. The company employee's also don't care as the fuel is company paid, this is why no one is bothered.
If your fueling your car with your own money, try to use TOTAL & CALTEX fuels.
Anyone can advise me on Legit Petrol pumps in Islamabad ?