Which engine oil should I use for my Kia Rio?

I just purchased a Kia Rio and I'm wondering which type of engine oil I should use. I've heard conflicting advice from different sources.

It is recommended to use a 5W-30 or 10W-30 synthetic engine oil for your Kia Rio.

I use a 5W-30 synthetic engine oil and have had no issues with my Kia Rio. It's important to follow the manufacturer's recommended oil viscosity for optimal performance.

Always make sure to use a high-quality engine oil, regardless of the oil viscosity. Cheaper oils can cause damage to your engine over time.