How can I improve the fuel efficiency of my Vauxhall Movano?

I have a Vauxhall Movano van and I've noticed that it's not as fuel efficient as I had hoped. Are there any maintenance tips or driving techniques that can help improve its fuel efficiency?

Regularly check and replace your air filter to ensure optimal engine performance and fuel efficiency.

Avoid excessive idling and try to maintain a consistent speed while driving to improve your van's fuel efficiency.

Ensure your tires are properly inflated to the recommended pressure to reduce rolling resistance and improve fuel economy.

Consider installing a fuel efficiency chip or tuning your engine for improved performance and fuel efficiency.

Try to reduce the weight of your van by removing any unnecessary items and avoiding overloading it, as this can significantly impact fuel efficiency.