Complete Oil Specifications
Your 2024 Mazda CX-30 2.5L Skyactiv-G requires 0W-20 full synthetic oil meeting API SP and ILSAC GF-6A standards. Mazda’s Skyactiv-G engine uses a high compression ratio (13.0:1) enabled by exhaust gas recirculation — a design that requires low-viscosity oil to minimize pumping losses and maintain the engine’s fuel economy advantage.
Quick Reference
| Specification | Value |
|---|---|
| Viscosity | 0W-20 |
| API Rating | API SP |
| ILSAC Rating | GF-6A |
| Capacity (with filter) | 4.8 quarts |
| Oil Filter | Mazda 1WPE-14-302 |
| Normal Interval | 7500 miles |
Why 0W-20 is Critical for This Engine
The Skyactiv-G 2.5L achieves its class-leading 13.0:1 compression ratio using a longer piston stroke and cooled exhaust gas recirculation. This design creates high cylinder pressures that require oil to flow quickly at cold start to prevent dry-running during the first seconds of operation. Mazda specifies 0W-20 to balance cold-start protection with the thermal film strength needed at high compression.
Using incorrect oil will:
- ❌ Increase cold-start wear on the high-compression pistons and cylinder walls
- ❌ Reduce fuel economy — the engine is calibrated for the lower internal friction of 0W-20
- ❌ Risk voiding Mazda’s powertrain warranty if a non-approved viscosity is used
Mazda-Approved Oil Brands
-
✅ Genuine Mazda Original Oil 0W-20 Full Synthetic
-
✅ Castrol Edge Advanced Full Synthetic 0W-20
-
✅ Mobil 1 Advanced Fuel Economy 0W-20
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✅ Pennzoil Platinum Full Synthetic 0W-20
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✅ Valvoline Advanced Full Synthetic 0W-20
Any oil meeting API SP and ILSAC GF-6A certification is approved by Mazda. The GF-6A standard includes pre-ignition (LSPI) protection testing relevant to high-compression engines.
Severe Service Check
You need the 5000-mile interval if you:
- Drive primarily short trips under 5 miles
- Navigate heavy stop-and-go commuting daily
- Operate in extreme temperatures (below 0°F or above 100°F)
- Drive in mountainous terrain with sustained climbs under load
Installation Details
Drain Plug Torque: 26 ft-lbs
OEM Filter: Mazda 1WPE-14-302
Aftermarket Filters:
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Mobil 1 M1-108A
-
WIX 51358
-
K&N PS-1008
Pro Tip: The CX-30’s oil filter is mounted low on the engine block and can drip onto the crossmember during removal — place a drip tray directly under the filter before loosening.
FAQs
What oil does a 2024 Mazda CX-30 2.5L Skyactiv-G take? 0W-20 full synthetic oil meeting API SP and ILSAC GF-6A standards.
How many quarts does it need? 4.8 quarts with a new filter, 4.5 without.
Can I use 5W-20 or 5W-30 instead of 0W-20? Mazda specifies 0W-20. In an emergency, 5W-20 is an acceptable short-term substitute, but return to 0W-20 at the next service.
Is synthetic oil required? Yes. The Skyactiv-G’s high compression ratio and tight tolerances require full synthetic oil.
How often should I change the oil? Every 7500 miles for normal driving, or 5000 miles for severe service.
Need these specs on your phone? Download OilFinderPro app for offline access and oil change reminders.
Last verified: 2026-05-31 | Source: 2024 Mazda CX-30 Owner’s Manual