How do I maintain the engine of my Audi A7?

I recently bought an Audi A7 and I want to make sure I take good care of the engine. What steps should I take to maintain it and ensure its longevity?

Regularly change the engine oil and filter according to the manufacturer's recommended schedule. This will keep the internal engine components well lubricated and prevent premature wear and tear.

Make sure to use high quality fuel and regularly add additives to keep the engine clean. This will prevent buildup of deposits and maintain optimal performance.