How do I maintain my Volkswagen Touareg's fuel efficiency?

I recently purchased a Volkswagen Touareg and I want to keep it fuel efficient. What are some tips, tricks, and best practices to maintain the fuel efficiency of my vehicle?

Regularly check and replace your air filters to ensure proper air flow and fuel efficiency.

Make sure your tires are properly inflated to improve fuel efficiency and reduce wear on your tires.

Avoid excessive idling and unnecessary stops to limit fuel consumption.

Try using cruise control when driving on the highway to maintain a consistent speed and improve fuel efficiency.

Consider using a fuel cleaning additive to keep your engine running efficiently.