Why is the Kia ProCeed's fuel economy lower than advertised?

I recently purchased a Kia ProCeed and noticed that the fuel economy is not as advertised by the manufacturer. I've followed the recommended maintenance schedule and driving habits, but I'm still not getting the promised MPG. Is there something else I should be doing to improve the fuel efficiency?

It is possible that there may be a mechanical issue affecting your fuel economy. I would recommend taking your ProCeed to a trusted mechanic for a thorough inspection.

In my experience, it takes some time for a new car to achieve its advertised fuel economy. Try driving on the highway for longer periods of time and keeping your speed consistent. This should help improve your MPG.

Have you tried using a fuel additive? It can help clean your engine and improve fuel efficiency. Just make sure to choose a reputable brand.