Is there a way to increase fuel efficiency in my Audi A4?

I've noticed that my Audi A4 has been consuming more fuel than usual. Is there a way to improve its fuel efficiency? Maybe through performance upgrades or maintenance tips?

Yes, there are definitely ways to improve the fuel efficiency of your Audi A4. First, make sure to regularly check and replace your air filters. This will help your engine to breathe easier and use less fuel. Additionally, consider getting a performance tune-up to optimize your engine's performance and efficiency. You can also try using a fuel additive to clean your fuel system and improve fuel economy.