Why is the fuel economy of my Kia Niro decreasing?

I've noticed that the fuel economy of my Kia Niro has been decreasing over the past few weeks. I've been following the recommended maintenance schedule and there doesn't seem to be any issues with the car. What could be causing this?

One possible reason for the decrease in fuel economy could be the tire pressure. Make sure to regularly check and adjust the tire pressure to the recommended levels. Underinflated tires can significantly decrease fuel efficiency.

Another reason could be the air filter. A dirty or clogged air filter can reduce airflow to the engine, causing it to use more fuel. Check your air filter and replace it if necessary.

You may also want to consider your driving habits. Aggressive driving, such as excessive acceleration and braking, can decrease fuel economy. Try to drive more smoothly and avoid unnecessary idling.