How to properly maintain the condition of the BMW 8 Series engine?

As a car enthusiast, I want to make sure that the heart of my BMW 8 Series stays in top-notch condition. What are the necessary steps to take in order to properly maintain the engine and prevent potential issues?

Regularly change the oil and oil filter every 5,000 miles to prevent sludge buildup and prolong engine life.

Using high-quality gasoline and performing fuel system cleanings can help prevent fuel injection issues.

Check and replace worn out spark plugs regularly to ensure optimal engine performance.