Why is my Kia Sportage's fuel efficiency decreasing?

I recently noticed that my Kia Sportage's fuel efficiency has been decreasing, even though I haven't changed my driving habits. What could be causing this and what steps can I take to improve it?

One possible reason for your Kia Sportage's decreased fuel efficiency could be old or dirty spark plugs. It's important to regularly check and replace your spark plugs to ensure optimal engine performance.

Another common cause of decreased fuel efficiency is a clogged air filter. Make sure to regularly clean or replace your air filter to improve your Kia Sportage's fuel efficiency.

Your driving habits can also play a big role in your Kia Sportage's fuel efficiency. Try to avoid sudden acceleration and braking, and maintain a steady speed as much as possible.