How to improve fuel efficiency on my Vauxhall Crossland?

I have been noticing that my Vauxhall Crossland's fuel efficiency is not as good as it used to be. What could be causing this and what steps can I take to improve it?

One possible reason for decrease in fuel efficiency could be a clogged air filter. It is recommended to replace the air filter every 10,000 miles or as per your vehicle's manual. This will help improve airflow and thus improve fuel efficiency.

Another common cause for decrease in fuel efficiency is underinflated tires. Make sure to regularly check and maintain proper tire pressure. This will not only improve fuel efficiency, but also extend the life of your tires.

Using a fuel additive can also help improve fuel efficiency. These additives clean the fuel injectors, improving their performance and thus improving fuel efficiency. Make sure to choose a high-quality fuel additive and follow the manufacturer's instructions.

Lastly, your driving habits can also greatly impact fuel efficiency. Avoid sudden acceleration and braking, maintain a steady speed and avoid idling for extended periods of time. These small changes can make a big difference in fuel efficiency.