How to improve fuel efficiency of my Audi 80?

I recently bought an Audi 80 and I've noticed that it consumes a lot of fuel. Is there any way to improve its fuel efficiency without compromising its performance?

First, make sure you keep up with regular maintenance such as oil changes and tire pressure checks. This can greatly impact fuel efficiency. You can also consider investing in high-quality fuel and using a fuel additive to improve performance. Additionally, avoiding excessive idling and driving at a consistent speed can also help improve fuel efficiency.

Another way to improve fuel efficiency is by reducing the car's weight. Make sure you're not carrying unnecessary items in the car and consider removing any extra luggage racks or other attachments. Additionally, try to plan your routes in advance to avoid any unnecessary detours or traffic.

Regularly check your air filters and replace them if they are dirty. A dirty air filter can decrease fuel efficiency significantly. Also, make sure your tires are properly inflated for optimal performance. And lastly, avoid aggressive driving habits such as quick acceleration and sudden braking.