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Vehicles using 4G63-SOHC engine list:

  • MITSUBISHI - Galant 2.0i 4WD (80kW) 1987–1990
  • MITSUBISHI - Galant 2.0i (80kW) 1990–1993
  • MITSUBISHI - Galant 2.0i 4WD (80kW) 1990–1993

Recommended oil for engine 4G63-SOHC 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 4G63-SOHC engine

SAE 10W-40
API SJ
API SL
API SM
API SN
ACEA A3/B3
ACEA A3/B4

Most common problems, symptoms & fixes for the 4G63-SOHC engine.

Engine 4G63-SOHC

Symptoms:
- Rough idling and hesitation during acceleration
- Excessive oil consumption or smoke from the exhaust
- Overheating or coolant leaks
- Loss of power or poor fuel economy
- Engine knocking or unusual noises

Diagnosis:
- Check for vacuum leaks and inspect intake manifold gaskets
- Perform a compression test to assess cylinder health
- Inspect timing belt condition and alignment
- Examine spark plugs and ignition components for wear or fouling
- Check coolant levels and radiator condition for leaks or blockages
- Look for oil leaks around valve cover gasket and seals

Fixes:
- Replace worn or cracked vacuum hoses and gaskets to eliminate leaks
- Change timing belt at recommended intervals (usually around 60,000-90,000 km) to prevent failure
- Repair or replace faulty spark plugs, ignition wires, or distributor components
- Address oil leaks by replacing valve cover gaskets and seals as needed
- Flush and refill coolant system; repair any leaks in hoses or radiator
- Clean or replace clogged fuel injectors to restore proper fuel delivery

Prevention:
- Follow regular maintenance schedule including oil changes every 5,000-7,500 km
- Replace timing belt proactively to avoid catastrophic engine damage
- Use quality coolant and maintain proper coolant levels to prevent overheating
- Inspect and replace ignition components periodically to ensure efficient combustion
- Monitor engine performance and address minor issues promptly to avoid escalation
- Keep air filter clean to ensure proper air intake and engine efficiency
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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.