How do I maintain optimal fuel efficiency in my Ford Mondeo?

I recently purchased a Ford Mondeo and I'm curious about the best practices for maintaining good fuel efficiency. What can I do to ensure that my car is running at its most efficient? Any tips or tricks would be greatly appreciated.

Regularly check your tire pressure to ensure they are properly inflated. Under-inflated tires can decrease your fuel efficiency by up to 3%

Don't overload your car with unnecessary weight. The added weight will put more strain on your engine and decrease your fuel efficiency.