How can I improve the gas mileage on my Ford Mondeo?

My Ford Mondeo seems to be guzzling gas and I'm struggling to make it last more than a week. Are there any tips or tricks I can use to increase its gas mileage without sacrificing performance?

One easy way to improve your Ford Mondeo's gas mileage is to make sure your tires are properly inflated. Under-inflated tires can decrease your gas mileage by up to 3%.

Another suggestion is to try using a fuel additive designed to improve gas mileage. These additives can help clean out your engine, resulting in improved fuel efficiency.