What is the recommended octane rating for an Audi 80?

I recently purchased an Audi 80 and was wondering what type of gasoline I should use to best maintain its performance and fuel efficiency. I want to make sure I am using the correct octane rating for my car to prevent any potential engine damage or decrease in performance.

The recommended octane rating for an Audi 80 is typically 91 or higher. Using a lower octane rating can cause engine knocking and potentially decrease overall performance. It's also important to check your car's specific manual for any manufacturer recommendations.

I've found that using a higher octane rating, such as 93, can provide slightly better performance and fuel efficiency in an Audi 80. However, it may not make a noticeable difference for most drivers unless you have a high-performance model. Ultimately, using the recommended 91 rating should suffice.