How to increase the fuel efficiency of my Nissan Micra?

I recently bought a Nissan Micra and noticed that it consumes a lot of fuel. What can I do to improve its fuel efficiency?

Regularly maintaining your car can greatly improve its fuel efficiency. Make sure to get your oil changed according to the manufacturer's recommendations and keep your tires properly inflated.

Avoid unnecessary idling and aggressive driving. Both of these can waste a substantial amount of fuel.