What type of antifreeze use for 2003 kia rio?

For a 2003 Kia Rio, it's recommended to use a coolant that meets the specifications of either ethylene glycol-based antifreeze or a phosphate-free, organic acid technology (OAT) coolant. A 50/50 mix of antifreeze and distilled water is typical for optimal performance. Always check the owner's manual for specific recommendations regarding the type and mixture ratio.