Even in the start 1000km i was not getting this low average.....it has been discussed various times that average of the car is not anything standard...its completely depends upon the style of driving and the traffic conditions....the least i got was 6km/lit which was because of chocked air filter...check the air filter and observe your driving style..for the tip..try to keep your car RPM below 2000 or upto 2000, you will get the good average...