How to maintain fuel efficiency in my Vauxhall Vivaro?

I have been noticing a decrease in fuel efficiency in my Vauxhall Vivaro. Is there anything I can do to improve it?

Regularly servicing your vehicle is key to maintaining good fuel efficiency. This includes replacing air filters, spark plugs, and performing routine oil changes.

Check your tire pressure regularly. Under or over-inflated tires can greatly impact fuel efficiency. Ensure your tires are properly inflated according to the manufacturer's recommendations.

Avoid aggressive driving habits, such as rapid acceleration and braking. This can significantly decrease fuel efficiency in any vehicle.

Consider using a fuel system cleaner every 3,000 miles or so to keep your engine running smoothly and efficiently.