What Causes Poor Fuel Consumption in a Ford Mondeo?

I have been noticing that my Ford Mondeo has been consuming a lot more fuel than usual. I'm not sure what could be causing this and I want to find a solution.

One common cause for poor fuel consumption in a Ford Mondeo is a clogged air filter. Make sure to regularly check and replace the air filter as needed.

Another possible cause could be a malfunctioning oxygen sensor. This can affect the fuel-to-air ratio and result in higher fuel consumption. It's best to get this checked by a professional mechanic.

Low tire pressure can also contribute to poor fuel consumption. Make sure to regularly check and maintain proper tire pressure to improve your car's gas mileage.