Why is my Kia Sorento's fuel economy decreasing?

I have noticed that my Kia Sorento's fuel economy has been decreasing over the past few months. My driving habits haven't changed and I have kept up with regular maintenance. What could be causing this decrease in fuel efficiency?

There could be a few different factors contributing to the decrease in fuel economy. One possibility is that your air filter needs to be replaced. A dirty air filter can restrict airflow and cause your engine to work harder, resulting in decreased fuel efficiency.

Another potential issue could be your tires. If your tires are not properly inflated, it can affect your fuel economy. Make sure to check your tire pressure regularly and keep them at the recommended levels.

It may also be worth checking your spark plugs. If they are worn or dirty, they can cause your engine to misfire and use more fuel than necessary. Consider having your spark plugs checked and replaced if needed.