How to properly maintain the fuel system in a Ford Fiesta?

I have a Ford Fiesta and I've noticed that my car has been struggling with fuel efficiency lately. How can I maintain and improve the fuel system in my Ford Fiesta to save money on gas and reduce environmental impact?

Regularly check and replace the fuel filter. A clogged fuel filter can decrease fuel efficiency and put strain on the engine.

Keep your tires properly inflated. This not only improves fuel efficiency, but also extends the life of your tires.

Avoid aggressive driving and unnecessary idling. This can greatly impact fuel consumption in any vehicle, including a Ford Fiesta.