How do I properly maintain my Audi A8's engine?

I just purchased an Audi A8 and want to make sure I give it the proper maintenance it needs to keep the engine running smoothly. What steps should I take to properly maintain my car's engine?

Make sure to regularly change the oil and oil filter, as this helps keep the engine clean and free of debris. Additionally, keeping up with routine maintenance tasks such as spark plug replacements or air filter changes can greatly prolong the life of your Audi A8's engine.

Always use high-quality gasoline and avoid filling up at stations with questionable fuel sources. Cheap gas may save you money now, but it may cause damage to your engine in the long run.

Pay attention to warning lights on your dashboard and address any issues promptly. Ignoring a check engine light or other warning sign can lead to further damage and potentially expensive repairs.