How do I improve gas mileage in my Ford Transit Custom?

I recently purchased a Ford Transit Custom and I've noticed that the gas mileage is not as efficient as I had hoped. Is there anything I can do to improve it?

I would recommend checking your tire pressure regularly. Under-inflated tires can decrease gas mileage. Also, try to avoid sudden accelerations and heavy loads.

Another tip is to make sure your air filter is clean. A dirty air filter can restrict air flow and decrease fuel efficiency.

You may also want to consider using synthetic oil in your engine. It can improve fuel economy and engine performance.