How can I increase the fuel efficiency of my Vauxhall Crossland?

I've noticed that my Vauxhall Crossland's fuel efficiency is not as good as it used to be. Are there any specific maintenance tasks I should do to improve its fuel efficiency?

Regularly check and replace your air filter. A clogged air filter can significantly decrease your car's fuel efficiency.

Make sure your tires are properly inflated. Under-inflated tires can increase drag and decrease fuel efficiency.

Maintain a consistent speed and avoid sudden acceleration and braking. This can save fuel and improve your car's efficiency.