What is the cause of reduced fuel efficiency in the Kia Niro?

I've noticed that my Kia Niro is not getting the same fuel efficiency as it used to. What could be causing this and how can I improve it?

The most common cause of reduced fuel efficiency in the Kia Niro is dirty air filters. Make sure to check and replace them regularly.

Another possibility could be low tire pressure. Make sure to regularly check and inflate your tires to the recommended levels.

If there are any issues with the oxygen sensors or spark plugs, it could also lead to reduced fuel efficiency. It's best to take your car to a mechanic and get these components checked and replaced if needed.