Why does my Ford EcoSport consume more fuel than usual?

I recently noticed that my Ford EcoSport is consuming more fuel than usual. I've always maintained it properly and haven't made any modifications. What could be the reason for this sudden increase in fuel consumption?

It could be due to a faulty oxygen sensor, which affects the air-fuel mixture and results in higher fuel consumption. I suggest getting it checked by a mechanic.

In some cases, a dirty air filter can also cause increased fuel consumption. Try replacing it and see if it makes a difference.

You could also try checking the tire pressure and see if it matches with the recommended pressure in the owner's manual. Low tire pressure can lead to higher fuel consumption.