Hello welcome. That's only 400 miles per tank roughly, how big is your fuel tank? Doesn't sound great for a modern car, although I'm assuming its gas and has an automatic gearbox? These two things alone are not a great combo for low fuel consumption. There was another owner with the same car getting bad mileage.
Bear in mind, most of your fuel consumption depends on how and where you drive, short city trips in traffic use a lot of fuel, at a steady speed on the highway you should see your best. And its still winter too
__________________