What is the most efficient way to maintain the Audi A5's engine?

I recently bought an Audi A5 and want to make sure I am maintaining the engine properly to ensure its longevity. What steps should I follow and what products should I use?

Regular oil changes and using high quality synthetic oil is crucial for maintaining the Audi A5's engine. Also, make sure to follow the recommended maintenance schedule provided by the manufacturer. As for products, I recommend using Castrol EDGE or Mobil 1 synthetic motor oil.

In addition to regular oil changes, it is important to also check and replace the air filter periodically. A clogged air filter can affect the engine's performance and fuel efficiency. As for products, I suggest using OEM or high quality aftermarket air filters.