Engine code
Vehicles using 1AR-FE engine list:
Which cars use the 1AR-FE engine and what oil to use. Common 1AR-FE engine faults, symptoms, diagnosis, prevention and repair.
Ask AI about any Engine code
Questions strictly about engine codes (brand/model/engine type/production years).
| Castrol Magnatec 5W‑30 A5 | |
|---|---|
| SAE 5W‑30 | ✔ |
| ACEA A1/B1 / A5/B5 | ✔ |
| API SN/CF | ✔ |
| ILSAC GF‑4 / GF‑5 | ✔ |
| Ford WSS‑M2C913‑A / B / C / D | ✔ |
| Liqui Moly Special Tec F 5W‑30 | |
|---|---|
| SAE 5W‑30 | ✔ |
| ACEA A5/B5 | ✔ |
| API SN | ✔ |
| ILSAC GF‑5 | ✔ |
| Ford WSS‑M2C913‑A / B / C / D | ✔ |
| Mobil Super 3000 Formula F 5W‑30 | |
|---|---|
| SAE 5W‑30 | ✔ |
| ACEA A1/B1 / A5/B5 | ✔ |
| API SN | ✔ |
| ILSAC GF‑5 | ✔ |
| Ford WSS‑M2C913‑A / B / C / D | ✔ |
| MPM 05000F 5W‑30 Premium Synthetic Ford | |
|---|---|
| SAE 5W‑30 | ✔ |
| ACEA A5/B5 | ✔ |
| API SN | ✔ |
| ILSAC GF‑4 / GF‑5 | ✔ |
| Ford WSS‑M2C913‑A / B / C / D | ✔ |
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.
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Answer generated by AI.
Oil specifications for 1AR-FE engine
SAE 0W-20
API SN
ILSAC GF-5
NO INFO -
Most common problems, symptoms & fixes for the 1AR-FE engine.
Engine 1AR-FE in the Lexus RX 270 (2010–2015) commonly faces issues like oil leaks, especially from the valve cover gasket, and occasional rough idling due to carbon buildup on intake valves. Diagnosis involves checking for visible oil seepage and using a scan tool to detect misfire codes. Prevent oil leaks by regularly inspecting and replacing gaskets as needed. To prevent carbon buildup, use high-quality fuel and perform periodic intake cleaning. If rough idling occurs, a professional intake manifold and throttle body cleaning can restore smooth operation. Regular oil changes and timely maintenance help ensure engine longevity and reliability.