How can I improve my gas mileage in my Volkswagen Polo?

I've noticed that my gas mileage is not as good as it used to be in my Volkswagen Polo. What can I do to improve it?

Make sure your tires are properly inflated. Underinflated tires can decrease gas mileage.

Avoid aggressive driving and accelerating quickly. This can significantly decrease gas mileage.

Regularly maintain your car and get tune-ups. A well-maintained car can improve gas mileage.

Consider using a fuel additive or cleaner to improve the efficiency of your engine.