Engine code
Vehicles using 1NZ-FE engine list:
Which cars use the 1NZ-FE engine and what oil to use. Common 1NZ-FE engine faults, symptoms, diagnosis, prevention and repair.
- SUBARU - Trezia 1.5i (80kW) 2011–2012
- SUBARU - Trezia 1.5i (80kW) 2013–2015
- TOYOTA - Verso S/ Ractis 1.5 VVT-i (80kW) 2010–2012
- TOYOTA - Verso S/ Ractis 1.5 VVT-i (80kW) 2013–2015
Recommended oil for engine 1NZ-FE 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 1NZ-FE engine
SAE 5W-30
ACEA A5/B5
API SN
ILSAC GF-5
VW 504.00
VW 507.00
Most common problems, symptoms & fixes for the 1NZ-FE engine.
Engine 1NZ-FE
Symptoms:
- Rough idling and hesitation during acceleration
- Engine misfires or stalling
- Excessive oil consumption or oil leaks
- Check Engine Light (CEL) illumination, often related to misfire or emissions codes
- Reduced fuel efficiency
Diagnosis:
- Inspect spark plugs and ignition coils for wear or damage, as ignition issues are common
- Check for vacuum leaks around intake manifold and hoses causing rough idle
- Perform compression test to assess cylinder health, as carbon buildup can affect valves
- Scan ECU for trouble codes related to misfire, oxygen sensors, or EGR system
- Examine PCV valve and oil seals for leaks contributing to oil consumption
Fixes:
- Replace worn spark plugs and faulty ignition coils to restore proper combustion
- Repair or replace cracked vacuum hoses and intake gaskets to eliminate leaks
- Clean intake valves and throttle body to remove carbon deposits improving airflow
- Replace faulty oxygen sensors or EGR components to correct emissions and performance
- Fix oil leaks by replacing gaskets or seals, and ensure PCV valve is functioning correctly
- Regular oil changes with recommended grade to prevent sludge buildup
Prevention:
- Follow manufacturer’s recommended maintenance schedule, especially spark plug and oil change intervals
- Use high-quality fuel and oil to reduce carbon deposits and wear
- Periodically inspect vacuum lines and intake components for early signs of deterioration
- Avoid prolonged idling and aggressive driving to reduce engine stress and buildup
- Keep the cooling system in good condition to prevent overheating which can damage engine components
By addressing these common issues proactively, owners of vehicles with the 1NZ-FE engine can maintain reliable performance and extend engine life.
Symptoms:
- Rough idling and hesitation during acceleration
- Engine misfires or stalling
- Excessive oil consumption or oil leaks
- Check Engine Light (CEL) illumination, often related to misfire or emissions codes
- Reduced fuel efficiency
Diagnosis:
- Inspect spark plugs and ignition coils for wear or damage, as ignition issues are common
- Check for vacuum leaks around intake manifold and hoses causing rough idle
- Perform compression test to assess cylinder health, as carbon buildup can affect valves
- Scan ECU for trouble codes related to misfire, oxygen sensors, or EGR system
- Examine PCV valve and oil seals for leaks contributing to oil consumption
Fixes:
- Replace worn spark plugs and faulty ignition coils to restore proper combustion
- Repair or replace cracked vacuum hoses and intake gaskets to eliminate leaks
- Clean intake valves and throttle body to remove carbon deposits improving airflow
- Replace faulty oxygen sensors or EGR components to correct emissions and performance
- Fix oil leaks by replacing gaskets or seals, and ensure PCV valve is functioning correctly
- Regular oil changes with recommended grade to prevent sludge buildup
Prevention:
- Follow manufacturer’s recommended maintenance schedule, especially spark plug and oil change intervals
- Use high-quality fuel and oil to reduce carbon deposits and wear
- Periodically inspect vacuum lines and intake components for early signs of deterioration
- Avoid prolonged idling and aggressive driving to reduce engine stress and buildup
- Keep the cooling system in good condition to prevent overheating which can damage engine components
By addressing these common issues proactively, owners of vehicles with the 1NZ-FE engine can maintain reliable performance and extend engine life.