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

I've noticed that my Vauxhall Astra is not getting as good gas mileage as it used to. Are there any specific maintenance tasks or driving techniques that can help improve fuel efficiency?

Firstly, make sure your tires are properly inflated. Under-inflated tires can cause your car to use more fuel. Secondly, regularly change your air filter. A dirty air filter can decrease fuel efficiency. Lastly, try to avoid quick acceleration and deceleration while driving.

I recommend using cruise control when possible. It helps to maintain a steady speed and can improve fuel efficiency. Also, avoid idling for long periods of time and combine errands into one trip to decrease the overall distance you drive.

Another important factor is keeping up with regular maintenance tasks such as spark plug replacements and oil changes. This can improve engine performance and ultimately, fuel efficiency.