For better car mileage consider few points:
1. Always follow an authorized service center for maintenance service
2. Avoid AC
3.Make sure that your tires are properly inflated
4.Always use a good engine oil
5. Avoid accelerating on steep road
6. Drive in right gear
7.Keeping your highway speed at 55 mph can improve you gas mileage by as much as 25%.
these are the few basics that one should follow while driving it is good for your.