How to maintain my Audi A8's engine for optimal performance?

I recently purchased an Audi A8 and want to make sure I am properly caring for the engine. What steps can I take to ensure maximum performance and longevity?

Regularly check and change the engine oil, as recommended by the owner's manual. This helps lubricate the engine and prevent buildup of debris and contaminants.

Make sure to use high-quality gasoline and keep the fuel tank at least half-full to prevent impurities from entering the engine and to maintain proper fuel pressure.