How to improve fuel efficiency in a Ford Transit Custom?

I recently bought a Ford Transit Custom and I've noticed that it's not as fuel efficient as I expected. What are some tips to improve its fuel efficiency?

One way to improve fuel efficiency is by regularly maintaining your vehicle. Make sure to check the air filter, fuel filter, and tire pressure. This can greatly impact your fuel consumption.

Another tip is to avoid idling for long periods of time. Idling can burn a significant amount of fuel, so turn off your engine if you're going to be parked for more than a few minutes.

Consider using a fuel consumption tracker app to monitor your driving habits and identify areas for improvement. It can also help you plan your routes more efficiently.