Why is my Kia Niro not getting the promised fuel efficiency?

I recently purchased a Kia Niro and was expecting to achieve the advertised fuel efficiency. However, I have noticed that my car is not getting as many miles per gallon as it should. Is there something wrong with my car or am I missing something?

Have you checked your tire pressure? Underinflated tires can significantly decrease fuel efficiency. Make sure to check your tire pressure regularly.

Another factor that can affect fuel efficiency is the type of fuel you are using. Make sure to use a reputable brand and the recommended octane level for your car.

Are you using the eco mode on your Kia Niro? This can help optimize fuel efficiency by adjusting your car's performance.