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Vehicles using DOHC N9. engine list:

  • FORD - Sierra / Sapphire 2.0i DOHC (92kW) 1990–1992
  • FORD - Sierra / Sapphire 2.0i DOHC 4x4 / XR 4x4 (88kW) 1990–1992
  • FORD - Sierra / Sapphire XR4i 2.0i DOHC (92kW) 1990–1991

Recommended oil for engine DOHC N9. engine.

Oil Specs Comparison
Castrol GTX 10W‑40 A3/B4
Castrol GTX 10W‑40 A3/B4
SAE 10W‑40✔
ACEA A3/B4✔
API SP✔
MB‑Approval 226.5 / 229.3✔
Renault RN0700 / RN0710✔
VW 501 01 / 505 00✔
Fiat 9.55535‑D2✔
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 DOHC N9. engine

SAE 10W-40
API SJ

Most common problems, symptoms & fixes for the DOHC N9. engine.

Engine DOHC N9. Common issues include timing belt wear, leading to potential valve damage if neglected. Regularly inspect and replace the timing belt every 60,000 to 90,000 km to prevent failure. Valve cover gasket leaks are frequent; check for oil seepage and replace gaskets as needed to avoid engine bay contamination. Cooling system faults, such as radiator or thermostat failure, can cause overheating—monitor coolant levels and temperature gauge, flushing the system periodically. Ignition components like spark plugs and coils may degrade; replace spark plugs every 30,000 km for optimal performance. Addressing these proactively ensures reliability and longevity of the DOHC N9 engine.
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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.