What is the best way to maintain the Audi A5's fuel efficiency?

I just purchased an Audi A5 and I want to make sure that I am able to maintain its fuel efficiency. What are some tips or best practices that I should follow?

It is important to keep your A5's tires properly inflated, as underinflated tires can decrease fuel efficiency. Regularly checking your tire pressure and filling them to the manufacturer's recommended level can help improve fuel efficiency.

Avoid unnecessary idling. Idling for long periods of time not only burns fuel but also wears down the engine, resulting in decreased fuel efficiency.