How to improve fuel efficiency in my Volkswagen Polo?

I've noticed that my Volkswagen Polo seems to use quite a lot of fuel, especially for its size. Are there any tips or tricks I can use to improve its fuel efficiency? It's important to me to reduce my carbon footprint and save money on gas.

Regularly maintaining your car, such as regularly changing the oil and air filters, can improve fuel efficiency. Also, keeping your tires properly inflated and avoiding rapid acceleration and braking can help as well.

Consider driving at a steady speed and using the cruise control when possible. This can help optimize your car's fuel consumption.

You can also try using a fuel additive, which can help clean your car's engine and improve its fuel efficiency.