Why does my Kia Sportage's engine make a knocking noise?

I've noticed that my Kia Sportage's engine makes a knocking noise, especially when I first start it up. What could be causing this and how can I fix it?

There could be several reasons for your engine to make a knocking noise. It could be due to low oil levels, worn out spark plugs, or even a faulty timing chain. I suggest getting your car checked by a mechanic to properly diagnose the issue.

Have you tried using a higher octane fuel? Sometimes using a low quality fuel can cause knocking noises in your engine. Try upgrading to a premium fuel and see if that makes a difference.

Another possibility is that your engine's bearings may be worn out. This can happen over time and can cause a knocking noise. It's best to have a mechanic inspect your engine and replace the bearings if necessary.