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Vehicles using Z20NET engine list:

  • OPEL - Signum 2.0 16V Turbo (129kW) 2003–2006
  • OPEL - Vectra C 2.0 16V Turbo (129kW) 2005–2009
  • OPEL - Signum 2.0 16V Turbo (129kW) 2006–2007
  • VAUXHALL - Signum 2.0 16V Turbo (129kW) 2003–2006
  • VAUXHALL - Vectra C 2.0 16V Turbo (129kW) 2005–2009
  • VAUXHALL - Signum 2.0 16V Turbo (129kW) 2006–2008

Recommended oil for engine Z20NET engine.

Oil Specs Comparison
Castrol MAGNATEC 5W‑30 C3
Castrol MAGNATEC 5W‑30 C3
SAE 5W‑30✔
ACEA C3✔
API SN/CF✔
BMW Longlife‑04✔
MB‑Approval 226.5 / 229.31 / 229.51 / 229.52✔
Opel OV 0401547‑D30 / G30✔
Fiat 9.55535‑S3✔
Renault RN0700 / RN0710✔
VW 505.00 / 505.01✔
dexos2✔
Liqui‑Moly Chrome C3 5W‑30
Liqui‑Moly Chrome C3 5W‑30
SAE 5W‑30✔
ACEA C3✔
API SN/CF✔
BMW Longlife‑04❌
MB‑Approval 226.5 / 229.31 / 229.51 / 229.52✔
Opel OV 0401547‑D30 / G30✔
Fiat 9.55535‑S3✔
Renault RN0700 / RN0710✔
VW 505.00 / 505.01✔
dexos2✔
Ridex Plus Active Energy C2/C3 5W‑30
Ridex Plus Active Energy C2/C3 5W‑30
SAE 5W‑30✔
ACEA C3✔
API SN/CF✔
BMW Longlife‑04✔
MB‑Approval 226.5 / 229.31 / 229.51 / 229.52✔
Opel OV 0401547‑D30 / G30✔
Fiat 9.55535‑S3❌
Renault RN0700 / RN0710✔
VW 505.00 / 505.01✔
dexos2✔
Shell Helix Ultra ECT C3 5W‑30
Shell Helix Ultra ECT C3 5W‑30
SAE 5W‑30✔
ACEA C3✔
API SN/CF✔
BMW Longlife‑04✔
MB‑Approval 226.5 / 229.31 / 229.51 / 229.52✔
Opel OV 0401547‑D30 / G30✔
Fiat 9.55535‑S3✔
Renault RN0700 / RN0710✔
VW 505.00 / 505.01✔
dexos2❓
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.

Answer generated by AI.

Oil specifications for Z20NET engine

SAE 5W-30
ACEA A3/B4
API SL
VW 502.00
VW 505.00

Most common problems, symptoms & fixes for the Z20NET engine.

Engine Z20NET

Symptoms:
- Loss of power and reduced acceleration
- Rough idling or engine misfires
- Check Engine Light (CEL) illumination
- Increased oil consumption or oil leaks
- Overheating or coolant loss

Diagnosis:
- Inspect turbocharger for wear or boost leaks causing power loss
- Check ignition coils and spark plugs for misfire codes (P0300-P0304)
- Scan for fault codes related to sensors (MAF, MAP, oxygen sensors)
- Examine valve cover gasket and turbo oil seals for leaks
- Test coolant system pressure and thermostat operation to rule out overheating

Fixes:
- Replace faulty ignition coils and worn spark plugs to resolve misfires
- Repair or replace leaking turbocharger seals and hoses to restore boost pressure
- Renew valve cover gasket and turbo oil seals to stop oil leaks
- Flush and refill coolant; replace thermostat if overheating persists
- Clean or replace faulty sensors to ensure proper engine management

Prevention:
- Regularly service ignition components every 60,000 km to avoid misfires
- Use high-quality engine oil and change it at recommended intervals to protect turbocharger seals
- Inspect and maintain cooling system to prevent overheating damage
- Periodically check turbocharger hoses and clamps for tightness and wear
- Address any warning lights promptly to avoid escalation of engine issues

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* The engine oils listed on this website are general recommendations based on publicly available data. For the most accurate and suitable oil type for your vehicle, always refer to your car's owner manual or technical documentation. Oil specifications may vary depending on engine version, production year, driving conditions, and other factors. If in doubt, consult your vehicle manufacturer or a certified mechanic.