What is the best way to maintain the fuel efficiency of my Kia Ceed?

I have recently purchased a Kia Ceed and I want to make sure I am maintaining the best fuel efficiency possible. What are some tips and tricks I can follow?

Regularly check and replace your air filter to ensure proper air flow and fuel efficiency.

Keep your tires properly inflated to reduce resistance and improve gas mileage.

Avoid aggressive driving and speeding, which can greatly decrease fuel efficiency.