How to improve fuel efficiency in a Vauxhall Astra?

I have noticed that my Vauxhall Astra's fuel efficiency has decreased over the past few months. What steps can I take to improve it?

Check your tire pressure regularly to ensure it is at the recommended level. Maintaining proper tire pressure can greatly improve fuel efficiency.

Avoid aggressive driving and try to maintain a constant speed while driving. This can help reduce fuel consumption.

Get regular tune-ups for your car and make sure to replace air filters when necessary. These small maintenance tasks can make a big difference in fuel efficiency.