What is the best oil to use in a 1990 Audi 80?

I recently purchased a 1990 Audi 80 and I'm not sure what type of oil to use. I want to make sure I am using the best oil for my car to ensure optimal performance and longevity. I am wondering if there are certain brands or types of oil that are recommended for this specific model and year of Audi 80.

For your 1990 Audi 80, I would recommend using fully synthetic oil. It is designed to provide superior protection and performance for newer cars, such as yours. Some good options are Mobil 1, Castrol Edge, and Pennzoil Ultra.

Based on my personal experience with a 1990 Audi 80, I would suggest using a high mileage oil. It contains special additives that can help reduce oil consumption and prevent leaks, common issues in older cars. My go-to brands are Valvoline MaxLife and Pennzoil High Mileage.

You could also try using a synthetic blend oil for your Audi 80. It combines the benefits of full synthetic and conventional oil, providing better protection and performance than conventional oil alone. Some good options are Valvoline SynPower and Mobil 1 High Mileage.