What is the best way to improve the fuel efficiency of a Vauxhall Astra?

I have a Vauxhall Astra and I'm looking for ways to improve its fuel efficiency. Are there any specific maintenance steps I should follow or modifications I can make?

First, make sure to keep up with regular maintenance such as oil changes and filter replacements. This will ensure your engine is running efficiently. Additionally, you can consider installing a cold air intake or upgrading your exhaust system to help with air flow.

Another way to improve fuel efficiency is to drive with the windows closed and use the air conditioning sparingly. This will reduce drag and help improve gas mileage. Additionally, getting regular tune-ups can also help improve the overall efficiency of your car.