What is the best way to maintain my Nissan X-Trail's fuel efficiency?

I recently purchased a Nissan X-Trail and I want to make sure I am getting the best fuel efficiency possible. What steps can I take to maintain its fuel efficiency in the long run? Are there any specific maintenance tasks I should be aware of?

Regularly check the air pressure in your tires and make sure they are properly inflated. This can greatly affect your fuel efficiency.

Get your vehicle's oil changed regularly. This ensures that the engine is running at its best and will improve fuel efficiency.