What is the best oil to use in an Audi A6 automatic transmission?

I recently purchased a used Audi A6 and I'm not sure which type of oil is best for the automatic transmission. Any advice or recommendations?

The best oil to use in an Audi A6 automatic transmission is a synthetic blend or fully synthetic oil. These oils provide better protection and lubrication for the transmission, improving performance and longevity. It is also recommended to use an oil specifically formulated for European cars.

I have been using a fully synthetic oil in my Audi A6 automatic transmission for years and haven't had any issues. Stick with a reputable brand and make sure it meets the manufacturer's specifications for your specific model.