Vehicles using ET engine list:

Recommended oil for engine ET engine.

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Questions strictly about engine codes (brand/model/engine type/production years).
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 ET engine

SAE 10W-40
API SJ

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

Engine ET in the 1986–1990 Honda Prelude 1.8 (77kW) commonly faces issues like valve cover gasket leaks, timing belt wear, and carburetor tuning problems. Diagnose leaks by inspecting for oil seepage around the valve cover. Prevent timing belt failure by replacing it every 60,000 km or 4 years to avoid engine damage. Carburetor issues manifest as rough idling or poor fuel economy; regular cleaning and adjustment help maintain performance. Address overheating by checking coolant levels and radiator condition. Regular oil changes and using quality fuel improve engine longevity. Promptly fix any vacuum leaks to maintain smooth operation and fuel efficiency.