Fluid · Coolant
Coolant
for 2011 Kia Optima 2.0L Turbo I4 · FWD
Fluid Type
Ethylene glycol-based coolant (green)
Spec: KIA/Hyundai long-life coolant
Capacity
7.9qt
7.47 L
Drain & Refill
7.2 qt
6.81 L
Change Interval
100,000 mi
160,900 km
Data quality
Book-style estimate
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Notes
First change at 100k miles or 10 years, then every 50k miles. Use pre-mixed 50/50. New generation uses extended-life coolant