How do I improve fuel efficiency on my Ford Transit Custom?

I have been noticing that my Ford Transit Custom is using more fuel than usual and I want to improve its fuel efficiency. What can I do?

Regularly maintaining your engine and changing your air filters can significantly improve fuel efficiency. Also, try to avoid idling for long periods of time and lighten your load as much as possible.

I've heard that using a fuel additive can also help improve fuel efficiency. It breaks down carbon build-up and allows for better fuel combustion. I recommend trying it out.

Another way to improve fuel efficiency is by driving at a steady speed and avoiding sudden acceleration and braking. This helps to optimize fuel consumption and can save you some money in the long run.