What is the best way to maintain the fuel efficiency of my Nissan Juke?

I recently bought a Nissan Juke and I'm wondering what tips and tricks I can use to keep its fuel efficiency at its best. I'm tired of constantly filling up at the gas station and want to make the most out of my car's fuel efficiency. Any suggestions?

Regularly check and replace your air filter to ensure proper air flow and combustion in your engine. This can greatly improve your fuel efficiency.