How to improve gas mileage in an Audi A8?

I recently purchased an Audi A8 and I've noticed that it's not getting the best gas mileage. Are there any tips or tricks I can use to improve the fuel efficiency of my car?

First, make sure your tires are properly inflated. Under-inflated tires can greatly decrease gas mileage. Also, try to avoid quick acceleration and braking, as this uses more fuel. And lastly, having regular maintenance and tune-ups can also improve your gas mileage.

Using a fuel injector cleaner can also help improve gas mileage. And if you use premium fuel, try switching to regular unleaded. Premium fuel is more expensive and may not necessarily improve your gas mileage.