How to improve the fuel efficiency of my Volkswagen Arteon?

I recently purchased a Volkswagen Arteon and I've noticed that I'm spending a lot on fuel. Is there any way to improve its fuel efficiency?

Regularly maintain your car, including oil changes and tire rotations, to ensure optimal performance and fuel efficiency.

Try using a fuel additive, such as fuel injector cleaner, to improve your car's efficiency.

Avoid excessive idling and aggressive driving, as these can greatly impact your car's fuel consumption.