How to Increase Fuel Efficiency in the Toyota Yaris?

I recently bought a Toyota Yaris and I've noticed that my fuel efficiency is not as good as I expected. How can I improve the fuel efficiency of my car?

Regularly check and replace your air filter. A dirty air filter can decrease your fuel efficiency by up to 10%. Make sure to replace it every 12,000 miles or as recommended by your car's manual.

Keep your tires properly inflated. Under-inflated tires can decrease fuel efficiency by up to 3%. Check your tire pressure monthly and inflate them to the recommended level.

Avoid idling for long periods of time. Idling can waste fuel and decrease fuel efficiency. Turn off your engine if you're going to be parked for more than 30 seconds.

Drive at a steady speed and avoid aggressive driving. Sudden accelerations and braking can waste fuel and decrease fuel efficiency. Try to maintain a constant speed and use cruise control if possible.

Consider using a fuel additive. Fuel additives can clean your fuel system and improve fuel efficiency. Just make sure to choose a reputable brand and follow the instructions carefully.