How can I improve my Vauxhall Insignia's fuel economy?

I recently purchased a Vauxhall Insignia and have noticed that the fuel economy is not as good as I expected. What can I do to improve it?

Regular maintenance is key to improving fuel economy. Make sure to keep up with oil changes, tire rotations, and other recommended services.

Avoid aggressive driving and try to maintain a consistent speed while driving. This can greatly improve your fuel efficiency.

Consider removing any unnecessary weight from your car, such as heavy items in the trunk. This can also improve your fuel economy.