How can I increase the fuel efficiency on my Audi A6?

I've noticed that my Audi A6 is becoming less and less fuel efficient. Is there anything I can do to improve its fuel efficiency?

Lila, you can try using a fuel injector cleaner to clean out any buildup in your fuel system. Also, make sure your tires are properly inflated and avoid excessive idling to improve your fuel efficiency.

Hi Lila, one way to increase your Audi A6's fuel efficiency is to practice smoother driving habits. Rapid acceleration and braking can use up more fuel. Also, consider getting regular tune-ups and changing out your air filter to keep your engine running efficiently.