Why is my Vauxhall Grandland experiencing decreased fuel efficiency?

I have noticed that my Vauxhall Grandland is not getting as many miles per gallon as it used to. What could be causing this decrease in fuel efficiency?

One possible reason could be that your tire pressure is too low. Make sure to check your tire pressure regularly and inflate them to the recommended level.

Another reason could be that your air filter is dirty. A dirty air filter can restrict air flow and decrease fuel efficiency. Try replacing the air filter and see if that helps.

It could also be an issue with your spark plugs. Worn out or dirty spark plugs can cause a decrease in fuel efficiency. Consider having them checked and replaced if necessary.