How can I improve my Audi A5's fuel consumption?

I have noticed that my Audi A5 consumes a lot of fuel compared to others in the same class. What can I do to improve its fuel efficiency?

Regularly check and clean or replace your air filter. A clogged air filter can decrease fuel efficiency by 10%. Also, make sure to use the recommended grade of oil for your car.

Avoid aggressive driving and unnecessary idling. Hard acceleration, sudden braking, and idling for long periods can significantly decrease fuel efficiency.

Consider installing a performance chip or tuning your engine to optimize fuel consumption. This may cost upfront, but can significantly improve your car's fuel efficiency in the long run.