What can I do to improve my Vauxhall Mokka's fuel efficiency?

I've noticed that my Vauxhall Mokka's fuel consumption is much higher than the advertised mileage. Is there anything I can do to improve its fuel efficiency?

Firstly, make sure you are driving in the proper gear and not constantly revving the engine. This can significantly affect fuel efficiency.

Regularly maintaining your car by changing the air filter and spark plugs can also improve fuel efficiency.

Avoid idling your car for long periods of time. This wastes fuel and contributes to lower fuel efficiency.