Why is my Vauxhall Grandland's fuel efficiency getting worse?

I have a 2018 Vauxhall Grandland and I've noticed that its fuel efficiency has been decreasing over time. I've been maintaining regular servicing but the issue persists. Is there something else that could be causing this?

Hi Sophia, have you checked your tires lately? Low tire pressure can greatly affect your fuel efficiency. Keeping your tires properly inflated can help improve it. Also, make sure to change your air filter regularly as a dirty filter can contribute to decreased fuel efficiency.

Sophia, another thing to check is your driving habits. Aggressive driving and excessive idling can use up more fuel. Be conscious of your acceleration and braking to see if that makes a difference in your fuel efficiency.

Sometimes, it could be an issue with the car's computer system. If you've ruled out all other possibilities, it might be worth bringing it to a mechanic to get checked out.