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-13721U | 4 TEMPS FCW 10W-30 | Minerva Oil SAS |
| FB-31001B | Tohatsu Premium Four-Stroke Oil | Tohatsu America Corp. |
| FB-37565U | KPO Jetski Watercraft 10w-40 | Kawasaki Motors Corp., U.S.A. |
| FB-83138K | RAVENOL OUTBOARDOEL 4T SAE 15W-40 | Ravensberger Schmierstoffvertrieb GmbH |