Saqib

Hi Recently i ve buyed vitz 2014 model. And i m sick of its fuel consumption. It was showing 10 km/L I visited 4 machanics and all of them said thr is nothing to work required in it. But still last machenic changed the plugs. And average was showing 15.5 + On that day. And i was very happy. But on the second day the average showing gone to 9 km / L. I dont know what to do !!