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.
2005 Kia Optima EX, 2.4 6FACTORY 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 | 8.20 QTS. | 7.76 L | Automatic Transmission Fluid DIAMOND SP IIM | S | |||
| Brake Fluid | N/A | N/A | DOT 3 or DOT 4 Brake Fluid | S | |||
| Engine Coolant | 2.4L Eng | 6.90 QTS. | 6.52 L | 50/50 mixture of Ethylene Glycol Antifreeze and water | S | ||
| Engine Oil | 2.4L Eng | w/Filter | 4.55 QTS. | 4.3 L | API - SAE 5W-30 | S | |
| Engine Oil | 2.4L Eng | w/o Filter | 4.23 QTS. | 4 L | API - SAE 5W-30 | S | |
| Fuel Tank | 17.20 GALS. | 65.1 L | S | ||||
| Manual Transmission Fluid | 2.20 QTS. | 2.08 L | API - GL-4, SAE 75W-90 | Fill for-life. | S | ||
| Power Steering Fluid | N/A | N/A | Power Steering Fluid Type III | S | |||
Factory Service Tools
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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.