Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2019 Kia OptimaCoolant Type & Capacity
OEM spec from the factory service manual for the Hybrid EX, 2.0L Eng VIN C variant.
Quick Answer
Coolant Type
50/50 mixture of Ethylene Glycol Antifreeze and water
Capacity
7.12 QTS.
6.73 L
Variant
Hybrid EX, 2.0L Eng VIN C
Source: Factory service manual — 2019 Kia Optima Hybrid EX, 2.0L Eng VIN C. View full manual section →
What You'll Need
Frequently Asked Questions
- What type of coolant does a 2019 Kia Optima take?
- The 2019 Kia Optima requires 50/50 mixture of Ethylene Glycol Antifreeze and water. The exact spec may vary slightly by engine variant — this page shows the OEM recommendation for the Hybrid EX, 2.0L Eng VIN C configuration.
- How much coolant does a 2019 Kia Optima hold?
- The 2019 Kia Optima cooling system capacity is 7.12 QTS. (6.73 L).
- Can I use universal coolant in my 2019 Kia Optima?
- It is strongly recommended to use coolant that meets the 50/50 mixture of Ethylene Glycol Antifreeze and water specification. Universal coolants may not provide the correct corrosion protection for your engine's materials.
- What happens if I use the wrong coolant in my 2019 Kia Optima?
- Using coolant that does not meet the OEM specification can cause corrosion, gasket damage, and overheating. Always verify the correct coolant type before topping off or flushing the system.