What is the recommended viscosity rating for engine oil in the Audi 80?

I am looking to change my engine oil on my Audi 80. What is the recommended viscosity rating for optimal performance?

The recommeded viscosity rating for engine oil in the Audi 80 is 5W-30 which provides the best balance between fuel efficiency and engine protection.

For increased performance and protection, a higher viscosity rating such as 10W-40 can be used, especially in warmer climates.

While a lower viscosity rating such as 5W-20 may provide better fuel efficiency, it may not offer sufficient engine protection for the Audi 80. It's best to stick with the recommended 5W-30.