How can I improve the fuel efficiency of my Vauxhall Astra?

I have been noticing that my Vauxhall Astra is consuming a lot of fuel lately. What can I do to improve its fuel efficiency?

First and foremost, make sure to keep your tires properly inflated. This can greatly affect your fuel efficiency.

Changing your air filter regularly can also help improve your fuel efficiency. A dirty air filter can restrict air flow and cause your car to use more fuel.

Avoid aggressive driving and excessive idling. These habits can greatly decrease your fuel efficiency.