How to improve the fuel economy of my Kia ProCeed?

I recently bought a Kia ProCeed and I'm looking for ways to improve its fuel economy. What can I do to make my car more fuel efficient?

Regularly check and replace your air filter. A dirty air filter can decrease fuel efficiency by up to 10%.

Avoid aggressive driving. Rapid acceleration, braking and speeding can significantly reduce your fuel economy.

Keep your tires properly inflated. Under-inflated tires can decrease fuel efficiency by up to 3%. Check your tire pressure regularly.