Complete Oil Specifications
Your 2022 Kia Stinger with the 2.5T Smartstream turbocharged engine requires 5W-30 full synthetic oil meeting API SP and ILSAC GF-6A standards.
Quick Reference
| Specification | Value |
|---|---|
| Viscosity | 5W-30 |
| API Rating | API SP |
| ILSAC Rating | GF-6A |
| Capacity (with filter) | 5.5 quarts |
| Oil Filter | Kia 26320-3L100 |
| Normal Interval | 7500 miles |
Why 5W-30 is Critical for This Engine
The G4KH Smartstream 2.5T uses a twin-scroll turbocharger and Kia’s Continuously Variable Valve Duration (CVVD) system — the world’s first production CVVD technology. The CVVD mechanism uses precisely timed oil pressure to continuously vary valve open duration (not just timing), and it depends on the 5W-30 viscosity’s pressure characteristics to respond accurately. A thinner oil reduces hydraulic authority in the CVVD system; a thicker oil slows its response.
Using incorrect oil will:
- ❌ Compromise CVVD response, reducing the torque-optimization benefit across the RPM range
- ❌ Risk turbo bearing failure from incorrect cold-start lubrication
- ❌ Void Kia’s powertrain warranty on the turbo and CVVD system
Kia-Approved Oil Brands
-
✅ Kia Genuine Motor Oil 5W-30
-
✅ Mobil 1 Advanced Full Synthetic 5W-30
-
✅ Castrol Edge Full Synthetic 5W-30
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✅ Pennzoil Platinum Full Synthetic 5W-30
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✅ Royal Purple HPS Full Synthetic 5W-30
The API SP specification mandates LSPI protection, which is critical for any turbocharged direct-injection engine including the G4KH.
Severe Service Check
You need the 3750-mile interval if you:
- Drive in sport mode frequently or use the full power band regularly
- Participate in autocross, track days, or performance driving events
- Tow a trailer
- Drive in sustained extreme heat (above 95°F)
Installation Details
Drain Plug Torque: 26 ft-lbs
Replace the crush washer each oil change to ensure a proper seal.
OEM Filter: Kia 26320-3L100
Aftermarket Filters:
-
Wix 51334XP
-
Mobil 1 M1-110
-
Fram XG3593A
Pro Tip: After a spirited drive, idle the Stinger for 60 seconds before shutting off. The twin-scroll turbo runs extremely hot under performance driving — short-trip off cycles without cool-down cause oil coking in the turbo center section over time.
FAQs
What oil does a 2022 Kia Stinger 2.5T take?
5W-30 full synthetic oil meeting API SP and ILSAC GF-6A.
How many quarts does it need?
5.5 quarts with a new filter.
What is CVVD and why does it matter for oil choice?
CVVD (Continuously Variable Valve Duration) is Kia’s system that varies how long intake valves stay open — not just when. It’s hydraulically actuated by engine oil pressure, which is why the correct viscosity is critical for system performance.
Can I use 5W-40 for better protection during spirited driving?
Kia does not approve 5W-40 for this engine. The CVVD system is calibrated for 5W-30’s pressure response. Stick to the spec.
How often should I change the oil?
Every 7500 miles or 12 months; 3750 miles or 6 months for performance driving.
Need these specs on your phone? Download OilFinderPro app for offline access and oil change reminders.
Last verified: 2026-04-17 | Source: 2022 Kia Stinger Owner’s Manual