What is the best way to maintain the engine of an Audi?

I have recently purchased an Audi and I want to make sure that the engine is maintained properly so that it runs smoothly. What are the top tips for keeping an Audi engine in top condition?

Regularly change the oil and filter. This keeps the engine lubricated and helps prevent wear and tear.

Ensure that the coolant level is always at the recommended level. This will prevent the engine from overheating.

Use high-quality fuel. It may be a bit pricier, but it will keep your engine running better and improve fuel efficiency.