How can I improve the fuel economy of my Audi 80?

I've noticed that my Audi 80 is consuming more fuel lately. What are some ways I can improve its fuel economy?

Regularly checking and replacing your air filter can improve your car's fuel efficiency. This is a simple and inexpensive maintenance task that can save you money in the long run.

Avoid aggressive driving habits such as excessive speeding and rapid acceleration, as they can significantly decrease your car's fuel economy. Drive at a steady pace and maintain a safe distance from the car in front of you.

Check your tire pressure regularly and make sure it is at the recommended level. Under-inflated tires can decrease your car's fuel efficiency and also cause uneven tire wear.