How do I improve the fuel efficiency of my Ford Transit Custom?

I recently purchased a Ford Transit Custom and have been using it for my business. However, I have noticed that the fuel consumption is quite high. Is there anything I can do to improve its fuel efficiency? I'm open to both small changes or upgrades.

One simple way to improve fuel efficiency is to regularly maintain your Ford Transit Custom. Regular oil changes, filter replacements, and tire rotations can greatly improve your vehicle's mileage.

Another option is to check your tire pressure regularly. Underinflated tires can decrease fuel efficiency, so make sure they are inflated to the recommended PSI.

Consider installing a cold air intake or a fuel efficiency chip in your Ford Transit Custom. These modifications can help increase your vehicle's horsepower and improve its fuel consumption.