What is the best way to maintain the fuel efficiency of my Volkswagen Tiguan?

I recently bought a Volkswagen Tiguan and I want to make sure I am taking the necessary steps to maintain its fuel efficiency. Any suggestions on what I should do?

Regularly check and replace the air filter to ensure proper air flow to the engine.

Maintain proper tire pressure as underinflated tires can decrease fuel efficiency.

Avoid excessive idling and unnecessary weight in the car to improve fuel efficiency.

Make sure to keep up with regular oil changes and use the recommended oil for your Volkswagen Tiguan.