How do I improve fuel efficiency in my Vauxhall Astra?

I've noticed that my Vauxhall Astra is not as fuel efficient as it used to be. Are there any tips or tricks to improve its fuel efficiency?

Regularly servicing your car can greatly improve its fuel efficiency. Make sure to follow the recommended maintenance schedule for your Astra.

Avoiding aggressive driving and maintaining a steady speed can also help improve fuel efficiency. Try to accelerate and brake smoothly.

Using cruise control on the highway can also help maintain a consistent speed and save on fuel.