Why is my Kia Ceed's fuel economy decreasing?

I have noticed that my Kia Ceed's fuel economy has been decreasing lately. I used to get better mileage before. What could be the reason for this and how can I improve it?

It's always a good idea to get your car serviced regularly, especially when it comes to things like air filters and spark plugs, which can affect your fuel economy.

It is important to regularly check the air pressure in your tires. Low pressure can significantly decrease your fuel economy.

Another factor that can affect fuel economy is your driving habits. Avoid aggressive acceleration and braking and try to maintain a steady speed while driving.

Have you recently changed your route or are you driving in heavier traffic now? Congestion and stop-and-go traffic can also decrease your fuel economy.