How to improve fuel efficiency on a Vauxhall Vivaro?

I have recently purchased a Vauxhall Vivaro and I am looking for ways to improve its fuel efficiency. Can anyone provide any tips or advice on how to achieve this?

Regularly check and replace air filters to keep the engine running efficiently.

Make sure to keep tires properly inflated to reduce rolling resistance and improve gas mileage.

Avoid aggressive driving and maintain a steady speed to conserve fuel.

Consider installing a fuel efficiency chip or tuning the engine for better performance.

Unload any unnecessary weight from the vehicle to reduce fuel consumption.