What factors should be considered when choosing the right engine oil for an Audi 80?

I want to make sure I am using the best engine oil for my Audi 80. What specific factors should I keep in mind when making this decision?

It is important to consider the viscosity grade, as well as the API service rating of the oil. Different Audi 80 models may require different grades and ratings. For example, a newer model may need an oil with a lower viscosity grade and a higher API service rating.

Do some research on the brand of engine oil you are considering, and look for reviews and recommendations specifically for Audi 80s. This can give you an idea of how well the oil has performed for other owners of this make and model.

In addition to the viscosity grade and API service rating, it is also important to consider the type of engine in your Audi 80. Some engines may require synthetic oil, while others may be fine with conventional oil.