Why is my Kia Stonic's fuel economy lower than expected?

I've noticed that the fuel economy of my Kia Stonic is not as good as I thought it would be. How can I improve it?

Check your driving habits. Hard acceleration and braking can greatly reduce fuel efficiency. Try to be smoother and more preemptive with your driving.

Make sure your tires are properly inflated. Underinflated tires can increase drag and decrease fuel efficiency.

Consider using a higher grade of fuel or a fuel additive. They may be more expensive, but they can improve fuel economy in certain cases.