What are the best ways to improve the fuel efficiency of a Ford Transit Custom?

I have recently purchased a Ford Transit Custom and I'm looking for tips and tricks to improve its fuel efficiency. I have a long daily commute and I'm hoping to save some money on gas. Any advice would be greatly appreciated.

One of the best ways to improve fuel efficiency in a Ford Transit Custom is by keeping up with regular maintenance. Ensure that your tires are properly inflated and your engine is tuned up.

Another way to improve fuel efficiency is by driving more efficiently. Avoid sudden and aggressive acceleration, and try to maintain a constant speed while driving on the highway.

Consider using fuel additives or using a higher quality fuel. These can help improve engine performance and ultimately lead to better fuel efficiency.