Why is my Kia Stonic's mileage decreasing?

I recently bought a Kia Stonic and have noticed that the mileage is decreasing faster than expected. I have been following the recommended maintenance schedule and am not sure what could be causing this issue. Any suggestions on what could be causing this or advice on how to improve mileage?

It is possible that there is an issue with your fuel system or engine. I would recommend taking it to a trusted mechanic to have it checked out.

Have you been driving on rough roads or in severe weather conditions? This can also have an effect on your mileage. It may be worth adjusting your driving habits to improve mileage.

Another factor could be your tire pressure. Make sure your tires are properly inflated for optimal mileage. Also, regularly cleaning and replacing air filters can also help improve mileage.