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

I've been having trouble with my Vauxhall Astra's fuel efficiency and I'm looking for ways to improve it. What steps can I take to increase the fuel efficiency of my car?

One way to improve fuel efficiency in your Vauxhall Astra is by maintaining your car regularly. Make sure to regularly change your engine oil and air filters to keep your car running smoothly and efficiently.

Another important factor in fuel efficiency is your driving habits. Avoid excessive idling, aggressive acceleration, and speeding to save fuel. Aim to maintain a constant, steady speed whenever possible.

Consider using a higher-quality fuel or adding fuel additives to your gas. These products can help improve your car's performance and increase fuel efficiency.

You may also want to check your tire pressure regularly. Under-inflated tires can decrease fuel efficiency, so make sure your tires are properly inflated to the recommended level.

Lastly, try to reduce unnecessary weight in your car. Clear out any extra items from your trunk and avoid carrying excess weight, as this can also impact fuel efficiency.