fuel efficiency is a matter of driving style and driving conditions. You will get lower fuel economy if you are driving on smaller inner city roads. If you run on highways or bigger roads, your fuel economy would have different results. I am currently running on longer routes and my Swift Auto is easily going around 11 km/l with the AC on....but I am positive this figure would reduce if I started doing inner city, congested roads run... Plus it also depends on how good a condition you have kept your car in. Well maintained vehicles exhibit better fuel economy of course.