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.
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2003 Hyundai Sonata LX, Standard
Quick Lookups: Fluids
2003 Hyundai Sonata LX, StandardSECTION Fluids
| FLUID CAPACITIES | |||||||
|---|---|---|---|---|---|---|---|
| Fluid Type | Application | Standard | Metric | Fluid Spec | Note | S/H | |
| Air Cond Compressor Oil | 5.00 OZS. | 0.14 L | PAG 46 | S | |||
| Air Cond Refrigerant | 1.25 LBS. | 0.56 KG | R-134a | S | |||
| Automatic Transmission Fluid | 8.20 QTS. | 7.76 L | HYUNDAI Automatic Transmission Fluid DIAMOND SP III or SK Automatic Transmission Fluid SP III | S | |||
| Brake Fluid | N/A | N/A | DOT 3 or DOT 4 Brake Fluid | As required. | S | ||
| Engine Coolant | 2.7L Eng | 9.00 QTS. | 8.51 L | 50/50 mixture of Ethylene Glycol Antifreeze and water | The engine coolant should be compatible with aluminum engine parts. | S | |
| Engine Oil | 2.7L Eng | Drain and Refill,w/Filter | 4.77 QTS. | 4.51 L | API - SAE 10W-30,10W-40 or 10W-50 | S | |
| Engine Oil | 2.7L Eng | Drain and Refill,w/o Filter | 4.45 QTS. | 4.21 L | API - SAE 10W-30,10W-40 or 10W-50 | 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 | S | |||
| Power Steering Fluid | 0.95 QTS. | 0.89 L | Power Steering Fluid Type 3 Fluid | S | |||
| Windshield Washer Fluid | N/A | N/A | Use a good quality windshield washer fluid, diluted with water as necessary. | S | |||
RENDER: 1.0x
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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.