How can I improve the fuel efficiency of my Vauxhall Movano diesel truck?

I have been noticing that my Vauxhall Movano diesel truck has been consuming a lot of fuel lately. Is there anything I can do to improve its fuel efficiency?

One possible solution is to regularly clean and replace your truck's air filter. This can help improve the air-to-fuel ratio and thus increase fuel efficiency.

Another tip is to regularly check and maintain proper tire pressure. Under-inflated tires can decrease fuel efficiency and cause uneven wear on your tires.

Using cruise control on the highway can also help improve fuel efficiency by maintaining a constant speed and avoiding unnecessary acceleration and deceleration.