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

I recently purchased a Vauxhall Movano and I've noticed that its fuel efficiency is not as good as advertised. How can I improve its fuel efficiency without sacrificing its performance?

First, make sure to keep your tires properly inflated. Underinflated tires can greatly reduce your fuel efficiency.

Another thing you can do is accelerate slowly and avoid sudden braking. This will help reduce fuel consumption.

Regular maintenance is also crucial for better fuel efficiency. Make sure to change your oil and air filter regularly.