Why is my Kia Rio's engine making odd noises?

I recently noticed some strange noises coming from my Kia Rio's engine and I'm not sure what's causing it. It almost sounds like something is rattling or knocking around. I'm worried about the potential for damage and want to make sure I address this issue as soon as possible.

It's possible that there may be an issue with your engine's components, such as worn bearings or loose belts. It's important to have a professional mechanic take a look at your car to diagnose and fix the problem.

Another possibility is that your car's oil level may be low, causing the engine to work harder and make unusual noises. Be sure to check your oil regularly and top it off if needed.

Have you recently switched to a lower grade of gasoline? If so, this could be causing the noises in your engine. Try using a higher grade fuel and see if the noises improve.