What is the best way to maintain the performance of my Audi A4 engine?

I recently purchased an Audi A4 and I want to make sure that the engine performs at its best. Can anyone recommend any tips or products for maintaining the engine's performance?

To maintain the performance of your Audi A4 engine, it is important to regularly change the oil and filter. This will help ensure that the engine stays clean and properly lubricated. Additionally, make sure to use high quality gasoline and regularly check and replace the air filter.

Another important aspect of maintaining engine performance is to regularly check and replace any worn out or damaged parts, such as spark plugs, ignition coils, and belts. These parts can greatly affect the engine's performance and should be replaced as needed.