Engine code
Vehicles using EZ30 engine list:
Which cars use the EZ30 engine and what oil to use. Common EZ30 engine faults, symptoms, diagnosis, prevention and repair.
- SUBARU - Legacy / Outback 3.0 (180kW) 2003–2004
- SUBARU - Legacy / Outback 3.0 (180kW) 2004–2005
- SUBARU - Tribeca (180kW) 2006–2008
Recommended oil for engine EZ30 engine.
Ask AI about any Engine code
Questions strictly about engine codes (brand/model/engine type/production years).
| Castrol Magnatec 5W‑30 A5 | |
|---|---|
| SAE 5W‑30 | ✔ |
| ACEA A1/B1 / A5/B5 | ✔ |
| API SN/CF | ✔ |
| ILSAC GF‑4 / GF‑5 | ✔ |
| Ford WSS‑M2C913‑A / B / C / D | ✔ |
| Liqui Moly Special Tec F 5W‑30 | |
|---|---|
| SAE 5W‑30 | ✔ |
| ACEA A5/B5 | ✔ |
| API SN | ✔ |
| ILSAC GF‑5 | ✔ |
| Ford WSS‑M2C913‑A / B / C / D | ✔ |
| Mobil Super 3000 Formula F 5W‑30 | |
|---|---|
| SAE 5W‑30 | ✔ |
| ACEA A1/B1 / A5/B5 | ✔ |
| API SN | ✔ |
| ILSAC GF‑5 | ✔ |
| Ford WSS‑M2C913‑A / B / C / D | ✔ |
| MPM 05000F 5W‑30 Premium Synthetic Ford | |
|---|---|
| SAE 5W‑30 | ✔ |
| ACEA A5/B5 | ✔ |
| API SN | ✔ |
| ILSAC GF‑4 / GF‑5 | ✔ |
| Ford WSS‑M2C913‑A / B / C / D | ✔ |
Oil specification key
✔ – Meets the required specification
❓ – Not explicitly stated (use caution; check your vehicle manual)
❌ – Does not meet required specification. Use may cause engine issues.
✔ – Meets the required specification
❓ – Not explicitly stated (use caution; check your vehicle manual)
❌ – Does not meet required specification. Use may cause engine issues.
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Answer generated by AI.
Oil specifications for EZ30 engine
SAE 5W-30
ACEA A3/B4
API SL
Most common problems, symptoms & fixes for the EZ30 engine.
Engine EZ30
Symptoms:
- Rough idling and misfires
- Excessive oil consumption
- Engine overheating
- Loss of power or hesitation during acceleration
- Check Engine Light illumination
Diagnosis:
- Inspect spark plugs and ignition coils for wear or damage, as misfires are common.
- Check for oil leaks around valve cover gaskets and camshaft seals.
- Perform a compression test to assess cylinder health.
- Monitor coolant levels and inspect the radiator and thermostat for proper function.
- Scan for diagnostic trouble codes (DTCs) to pinpoint sensor or system faults.
Fixes:
- Replace worn spark plugs and faulty ignition coils to resolve misfires.
- Replace valve cover gaskets and camshaft seals to stop oil leaks.
- Repair or replace the thermostat and radiator if overheating is detected.
- Address any vacuum leaks or intake manifold issues that may cause rough running.
- Clean or replace the mass airflow sensor (MAF) and oxygen sensors if faulty.
- Regular oil changes with high-quality synthetic oil to reduce consumption and wear.
Prevention:
- Adhere to recommended maintenance intervals, especially oil and filter changes.
- Use the correct grade of engine oil to ensure proper lubrication.
- Regularly inspect and replace ignition components before failure.
- Keep the cooling system flushed and filled with the appropriate coolant mixture.
- Avoid prolonged idling and aggressive driving to reduce engine stress.
- Monitor engine performance and address minor issues promptly to prevent escalation.
By following these diagnostic steps and maintenance practices, owners can mitigate common EZ30 engine problems and maintain reliable performance.
Symptoms:
- Rough idling and misfires
- Excessive oil consumption
- Engine overheating
- Loss of power or hesitation during acceleration
- Check Engine Light illumination
Diagnosis:
- Inspect spark plugs and ignition coils for wear or damage, as misfires are common.
- Check for oil leaks around valve cover gaskets and camshaft seals.
- Perform a compression test to assess cylinder health.
- Monitor coolant levels and inspect the radiator and thermostat for proper function.
- Scan for diagnostic trouble codes (DTCs) to pinpoint sensor or system faults.
Fixes:
- Replace worn spark plugs and faulty ignition coils to resolve misfires.
- Replace valve cover gaskets and camshaft seals to stop oil leaks.
- Repair or replace the thermostat and radiator if overheating is detected.
- Address any vacuum leaks or intake manifold issues that may cause rough running.
- Clean or replace the mass airflow sensor (MAF) and oxygen sensors if faulty.
- Regular oil changes with high-quality synthetic oil to reduce consumption and wear.
Prevention:
- Adhere to recommended maintenance intervals, especially oil and filter changes.
- Use the correct grade of engine oil to ensure proper lubrication.
- Regularly inspect and replace ignition components before failure.
- Keep the cooling system flushed and filled with the appropriate coolant mixture.
- Avoid prolonged idling and aggressive driving to reduce engine stress.
- Monitor engine performance and address minor issues promptly to prevent escalation.
By following these diagnostic steps and maintenance practices, owners can mitigate common EZ30 engine problems and maintain reliable performance.