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.
2008 Kia Optima EX, 2.4 3FACTORY OEM SERVICE PROCEDURE
Quick Lookups: Fluids
| FLUID CAPACITIES | |||||||
|---|---|---|---|---|---|---|---|
| Fluid Type | Application | Standard | Metric | Fluid Spec | Note | S/H | |
| Air Cond Compressor Oil | 4.40 OZS. | 0.13 L | PAG 46 | Approximate capacity. | S | ||
| Air Cond Refrigerant | 1.10 LBS. | 0.49 KG | R-134a | S | |||
| Automatic Transmission Fluid | 10.00 QTS. | 9.46 L | Automatic Transmission Fluid DIAMOND SP III, SK Automatic Transmission Fluid SP III or other brands meeting the SP III specification approved by KIA Motor Corp | S | |||
| Brake Fluid | 1.00 QTS. | 0.94 L | DOT 3 or DOT 4 Brake Fluid | S | |||
| Engine Coolant | 2.4L Eng | 7.00 QTS. | 6.62 L | 50/50 mixture of Ethylene Glycol Antifreeze and water | The engine coolant should be compatible with aluminum engine parts. | S | |
| Engine Oil | 2.4L Eng | w/Filter | 4.50 QTS. | 4.25 L | API - SJ, SL/ILSAC GF-3, SAE 5W-20, SAE 5W-30 | S | |
| Fuel Tank | 16.40 GALS. | 62.08 L | S | ||||
| Manual Transmission Fluid | 2.00 QTS. | 1.89 L | API - GL-4, SAE 75W-85 | Fill for-life. | S | ||
| Power Steering Fluid | 0.80 QTS. | 0.75 L | Power Steering Fluid Type IV | S | |||
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.