How to improve the fuel efficiency in the Kia Ceed?

I recently bought a Kia Ceed and noticed that it's not as fuel efficient as expected. I have tried some tips suggested online but it's still not working. What can I do to improve its fuel efficiency?

First of all, make sure your tires are properly inflated. Under-inflated tires can lower your fuel efficiency by up to 3%. Check your tires' recommended pressure and inflate them accordingly.

Another thing you can do is to use cruise control when driving on the highway. This helps maintain a steady speed and reduces unnecessary acceleration, which can save you fuel.

Avoid idling your car for too long. If you're stuck in traffic or waiting for someone, it's better to turn off your engine instead of letting it run. This can save you a significant amount of fuel in the long run.