How do I increase the fuel efficiency in my Ford S-Max?

I recently purchased a Ford S-Max and I've noticed that it doesn't get the best gas mileage. Are there any tips or modifications I can make to improve its fuel efficiency?

One of the easiest ways to improve your Ford S-Max's fuel efficiency is to regularly check and replace the air filter. A dirty air filter can cause your engine to work harder, leading to decreased fuel efficiency. Additionally, you can improve your driving habits by avoiding aggressive acceleration and braking.

Consider using a fuel additive to help clean and maintain your engine's performance. Some additives can also help improve gas mileage. Make sure to check with your Ford dealership or car mechanic for recommendations on which additives to use.