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Vehicles using M20B20 engine list:

  • BMW - 320i (95kW) 1987–1991

Recommended oil for engine M20B20 engine.

Ask AI about any Engine code
Questions strictly about engine codes (brand/model/engine type/production years).
Oil Specs Comparison
Castrol EDGE 0W-40 R
Castrol EDGE 0W-40 R
ACEA C3✔
Renault RN17 RSA✔
Kinematic @ 100°C13.5 mm²/s
Kinematic @ 40°C78.3 mm²/s
Viscosity Index178
Pour Point-48°C
Flash Point200°C
Density @ 15°C0.849 g/ml
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 M20B20 engine

SAE 10W-40
API SJ
BMW Longlife-98

Most common problems, symptoms & fixes for the M20B20 engine.

Engine M20B20 is known for its durability but has common issues like oil leaks from valve cover gaskets and rear main seals. Diagnosis involves checking for oil spots under the car and inspecting the gasket condition. Prevent leaks by regularly replacing gaskets and seals every 80,000 km or if deterioration is visible. Cooling system problems, such as radiator or water pump failure, can cause overheating; prevent this by flushing coolant every 2 years and inspecting hoses. Timing chain wear may cause rattling noises; timely replacement around 150,000 km prevents engine damage. Regular oil changes with quality oil extend engine life and reduce wear.
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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.