What is the best way to increase fuel efficiency in an Audi A3?

I recently purchased a used Audi A3 and I've noticed that I'm not getting the best gas mileage. What steps can I take to improve the fuel efficiency of my car?

Firstly, make sure your tires are properly inflated as low tire pressure can significantly decrease fuel efficiency. Secondly, try to avoid excessive idling and aggressive driving. Finally, regular maintenance such as oil changes and air filter replacements can greatly improve your car's fuel efficiency.

In addition to the above tips, you can also consider using a fuel additive or switching to a higher quality gasoline. Keeping your car's weight to a minimum and removing any unnecessary items from your trunk can also positively impact fuel efficiency.

Investing in proper maintenance and regular tune-ups can go a long way in improving fuel efficiency. Also, try to plan your routes to avoid heavy traffic and use cruise control on the highway to maintain a consistent speed.