Vehicles using 138B6.000 engine list:
Recommended oil for engine 138B6.000 engine.
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Questions strictly about engine codes (brand/model/engine type/production years).
| Castrol GTX 15W‑40 A3/B3 | |
|---|---|
| ACEA A3/B3 | ✔ |
| API SP (or SN) | ✔ |
| VW 501.01 / 505.00 | ✔ |
| MB‑Approval 229.1 | ✔ |
| Fiat 9.55535‑D2 | ✔ |
| Shell Helix HX5/6 15W‑40 | |
|---|---|
| ACEA A3/B3 | ✔ |
| API SN | ✔ |
| VW 501.01 / 505.00 | ✔ |
| MB‑Approval 229.1 | ✔ |
| Fiat 9.55535‑D2 | ✔ |
| Total Quartz 7000 15W‑40 | |
|---|---|
| ACEA A3/B3 | ✔ |
| API SP | ✔ |
| VW 501.01 / 505.00 | ✔ |
| MB‑Approval 229.1 | ✔ |
| 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.
✔ – 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 138B6.000 engine
SAE 15W-40
API CH-4
Fiat 9.55535-D
Most common problems, symptoms & fixes for the 138B6.000 engine.
Engine 138B6.000, used in Fiat Regata Diesel models (1984–1990), commonly faces injector clogging and fuel pump wear due to diesel impurities. Diagnose by checking rough idling, poor acceleration, or smoke. Prevention includes using high-quality diesel and regular fuel filter changes. Timing belt wear can cause performance loss; inspect and replace every 60,000 km. Overheating issues often stem from radiator blockages—flush cooling system periodically. For injector problems, professional cleaning or replacement is advised. Regular oil changes with recommended grades prevent premature wear. Addressing these issues promptly ensures reliability and extends engine life in these classic Fiat diesels.