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

I recently purchased a Vauxhall Vivaro and I'm looking for ways to improve its fuel efficiency. Are there any modifications or maintenance tips that can help me achieve this?

One way to improve the fuel efficiency of your Vauxhall Vivaro is to keep up with regular maintenance such as oil changes and tire rotations.

Installing a cold air intake can also help improve your vehicle's fuel efficiency.

You may want to consider using a fuel additive to increase your Vauxhall Vivaro's miles per gallon.