FC-W® lubricants are tested to meet performance and quality standards that were developed by NMMA to ensure optimum performance in today’s high-performance four-stroke marine engines.
The marine four-stroke oil testing criteria include bench tests for viscosity, corrosion, filter plugging, foaming, and aeration. Furthermore, the oil must successfully pass a 100-hour general performance engine test.
Once an oil has been tested by a sanctioned test laboratory, NMMA issues a license for the oil’s formulation and registers approved brands.
For more information regarding oil certification, contact:
Scott Berry
Senior Director, Engineering Standards
312.946.6254
2025 FC-W® Registered Four-Stroke-Cycle Marine Oils
| Number | Name | Company |
|---|---|---|
| FB-00511J | Yamalube Marine Performance 4M Four Stroke FC-W 10W-30 | Yamaha Motor Corporation |
| FB-00512J | Yamalube Marine Performance 4M Four Stroke FC-W 20W-40 | Yamaha Motor Corporation |
| FB-00616J | Lubrax Nautica Tecno SAE 25W-40/Petrobras Distribuidora | Vibra Energia S.A. |
| FB-050556A | YAMALUBE 4T | Eduardono S.A.S. |
| FB-130450Y | Sierra Synthetic Blend 25W-50 | Sierra International |
| FB-13721U | 4 TEMPS FCW 10W-30 | Minerva Oil SAS |
| FB-13724U | ECSTAR V7000 Semi-Synthetic Marine Engine Oil | Suzuki Motor Corporation |
| FB-174516X | 10W-30 FC-W 4-Stroke | Sierra International |
| FB-20333H | Prosurf 4T FC-W, SAE 10W-40 | IGOL France |
| FB-20444H | Prosurf 4T FC-w, SAE 10W-30 | IGOL France |
| FB-20555H | Prosurf 4T FC-W, SAE 25W-40 | IGOL France |
| FB-255141Z | Quicksilver 10W30 Full Synthetic | Mercury Marine |
| FB-31001B | Tohatsu Premium Four-Stroke Oil | Tohatsu America Corp. |
| FB-320054X | 25W-40 FC-W Semi Synthetic | Sierra International |
| FB-357638X | 25W-40 FC-W 4-Stroke | Sierra International |
| FB-367231Z | Mercury Racing 10W30 Full Synthetic | Mercury Marine |
| FB-37565U | KPO Jetski Watercraft 10w-40 | Kawasaki Motors Corp., U.S.A. |
| FB-419972C | Mercury Racing 25W50 Synthetic Blend | Mercury Marine |
| FB-546901X | 10W-40 FC-W Semi Synthetic | Sierra International |
| FB-572441C | Quicksilver High Performance 25W50 Synthetic Blend 4T | Mercury Marine |
| FB-586638A | FCW 20W-40 Conventional/Mineral | Sierra International |
| FB-731436X | 10W-30 Synthetic | Sierra International |
| FB-737114Z | Mercury 10W30 Full Synthetic | Mercury Marine |
| FB-804392C | YAMALUBE 5W30 FULL SYN MARINE FCW | Yamaha Motor Corporation |
| FB-80460T | Yamalube Marine Performance FC-W 10W-30 | Yamaha Motor Distribution Latin America Inc. |
| FB-83138K | RAVENOL OUTBOARDOEL 4T SAE 15W-40 | Ravensberger Schmierstoffvertrieb GmbH |