How can I make my Ford Transit Custom run more efficiently?

I have a Ford Transit Custom and I've noticed that it's been burning through gas faster than usual. Is there any way I can improve its fuel efficiency?

One of the best ways to improve fuel efficiency in your Ford Transit Custom is to regularly maintain it. Make sure to change the air filter, spark plugs, and oil on a regular schedule.

Another important factor to consider is your driving habits. Avoid aggressive acceleration and braking and try to maintain a consistent speed on the highway.