What type of fuel does the Audi 80 require?

I am thinking of purchasing an Audi 80 and I want to make sure I know what kind of fuel it takes. Can you please tell me which type of fuel is recommended for this car?

The Audi 80 is compatible with both unleaded gasoline and diesel fuel. However, it is recommended to use premium unleaded gasoline for optimal performance.

An Audi 80 owner manual states that the car requires a minimum octane rating of 91 for unleaded gasoline. Using lower octane fuel can potentially damage the engine.

Based on my experience as an Audi mechanic, I would suggest using premium unleaded gasoline for your Audi 80. This will help maintain the engine's longevity and overall performance.