What is the best way to maintain the fuel efficiency of my Volkswagen Polo?

I have noticed that my Volkswagen Polo's fuel consumption has increased recently. What are some tips or tricks to maintain its fuel efficiency?

Regularly check and replace your air filter. A clogged air filter can decrease your fuel efficiency.

Avoid aggressive driving habits such as rapid acceleration and braking. These actions can significantly impact your fuel consumption.

Ensure your tires are properly inflated. Low tire pressure can increase the drag on your vehicle and reduce fuel efficiency.