Why is the Nissan Navara's fuel efficiency so low?

I recently purchased a Nissan Navara and I've noticed that it's not as fuel efficient as other trucks in the same category. Is there anything I can do to improve its fuel efficiency?

One way to improve the fuel efficiency of your Nissan Navara is to regularly maintain it. Make sure to get regular oil changes and tune-ups as dirty oil and clogged filters can significantly decrease fuel efficiency.