How to improve fuel efficiency of my Vauxhall Movano?

I have noticed that my Vauxhall Movano is consuming more fuel than usual. What can I do to improve its fuel efficiency?

Regularly check tire pressure and keep it at the recommended level to reduce fuel consumption.

Have a mechanic check for any air or vacuum leaks in the engine, as this can lead to increased fuel consumption.

Avoid accelerating or braking aggressively, as it can significantly impact fuel efficiency.