How to fix poor fuel efficiency in an Audi 80?

I recently noticed that my Audi 80 has been consuming more fuel than usual. What could be the cause and how can I improve its fuel efficiency?

Poor fuel efficiency can be caused by multiple factors such as dirty fuel injectors, clogged air filters, or low tire pressure. It is important to regularly maintain your Audi 80 to ensure optimal fuel efficiency.

One way to improve fuel efficiency is by avoiding aggressive driving habits such as speeding and rapid acceleration. These actions can significantly decrease your fuel mileage.

Consider using a fuel system cleaner to remove any buildup in your vehicle's fuel system. This can improve fuel efficiency and extend the life of your engine.