Why is my Kia Soul's fuel efficiency decreasing?

I have noticed that my Kia Soul's fuel efficiency has been decreasing over the past few months. I used to get around 30 mpg, but now I am only getting around 25 mpg. What could be causing this decrease and how can I improve my fuel efficiency?

It is possible that your tires are not properly inflated. Make sure to regularly check your tire pressure and inflate them to the recommended level.

Another common issue that can affect fuel efficiency is a clogged air filter. Check your air filter and replace it if necessary.

You may also want to consider your driving habits. Do you accelerate and brake frequently? This can greatly impact fuel efficiency. Try to maintain a steady speed and avoid sudden movements.