What is the best way to improve the fuel efficiency of a Nissan Micra?

I recently purchased a Nissan Micra and I noticed that it has a high fuel consumption. Is there any tip or trick that can help me improve its fuel efficiency without spending too much money? Any advice would be highly appreciated.

It is important to keep your Nissan Micra well-maintained by regularly checking the air filter, spark plugs, and tire pressure. This could significantly improve fuel efficiency.

I would recommend using a fuel injector cleaner every few months to keep the fuel system clean and improve its efficiency.

Avoid aggressive driving and speeding as it can significantly increase fuel consumption. Drive at a steady pace and not exceeding the speed limit.