My Alto VXR 2012 gives me in city 12KML on AC, 15 to 16 KML without AC and 26 KML on CNG, Reasons for this average is I am changing oil on time if my mechanic said 3000KM than it means 3000 not 3200, and also gear shifting matters in good average. 0-10(2nd),35(3rd),55(4th),75(5th)