How often should I change the spark plug on my Audi A8?

I am wondering what is the recommended interval for changing the spark plug on my Audi A8. Is it better to do it annually or every few years? Thank you for your advice.

It is recommended to change the spark plug every 30,000 miles or every 3-5 years, whichever comes first. This ensures optimal performance and fuel efficiency. As for the frequency, it is best to stick to the manufacturer's recommendation.

I recommend changing the spark plug every year to avoid any potential issues. Neglecting to change them regularly can result in decreased performance and potential engine problems. It's a small and inexpensive maintenance item that can make a big difference.

Based on my experience with Audi A8s, I suggest changing the spark plug every 50,000 miles or every 5 years. However, if you notice any changes in your car's performance or fuel efficiency, it's best to get them checked and replaced if needed. Prevention is always better than cure.