How do I increase the fuel efficiency of my Kia Ceed?

I recently purchased a Kia Ceed and I'm noticing that my fuel consumption is much higher than expected. What are some technical tips and tricks I can use to improve the fuel efficiency of my car?

One simple way to improve fuel efficiency is to make sure you're using the right type of gasoline for your car. Check your owner's manual for the recommended gasoline grade.

Regularly change your air filter. A dirty air filter can affect fuel efficiency by up to 10%. Check your air filter every 6 months and replace it if necessary.

Maintain proper tire pressure. Under-inflated tires can cause drag and decrease fuel efficiency. Check your tires once a month and use a tire pressure gauge to ensure they're properly inflated.