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

I just bought a brand new Ford Transit Custom and I want to make sure I am doing everything I can to maintain its fuel efficiency. Any tips or advice?

Make sure you regularly check your tire pressure and keep it at the recommended level. Under-inflated tires can decrease fuel efficiency.

Avoid aggressive driving and try to maintain a steady speed. Sudden acceleration and braking can decrease fuel efficiency.

Keep your engine well-maintained and get regular oil changes. A dirty engine can significantly impact fuel efficiency.