Concerned about low fuel efficiency in my Vauxhall Vivaro

I have noticed that my Vauxhall Vivaro is not getting the same fuel efficiency as it used to. What could be causing this issue and how can I improve it?

First of all, make sure your tires are properly inflated as this can greatly affect fuel efficiency. Also, check for any clogged air filters or spark plugs that may be hindering the engine's performance. Lastly, try using a fuel additive to improve your Vauxhall Vivaro's fuel efficiency.

Another potential issue could be your driving habits. Avoid aggressive acceleration and braking, as well as excessive idling, to improve fuel efficiency.

If the issue persists, it may be worth getting your Vauxhall Vivaro's fuel system checked by a mechanic. They can identify any underlying problems that may be causing low fuel efficiency.