How to improve fuel efficiency in the Vauxhall Vivaro?

I have been struggling with high fuel costs using my Vauxhall Vivaro. What can I do to improve its fuel efficiency?

Regularly check and replace air and fuel filters to improve engine performance.

Make sure your tires are properly inflated to reduce resistance on the road.

Avoid unnecessary idling and use cruise control when possible to minimize fuel consumption.

Consider installing a performance chip or tuning the engine to optimize fuel efficiency.

Reduce the weight of your vehicle by removing unnecessary items and equipment.