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


2024 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-097565B Repsol SAILOR Gasoline Board 4T Repsol Lubricantes Y Especialidades S.A.
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-13800W Motul Marine Tech 4T 25w-40 MOTUL SA
FB-13811W Marine Outboard Four Stroke Oil 10w-40 Penrite Oil Company Pty Ltd
FB-14307W Marine Performance 20W-40 Yamaha Motor Canada Ltd.
FB-14800W Motul Outboard Tech 4T 10w-40 MOTUL SA
FB-174516X 10W-30 FC-W 4-Stroke Sierra International
FB-20114N Evinrude Johnson Marine Stern Drive 25W40 Oil Bombardier Recreational Products, Inc.
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-38003W Motul Outboard Tech 4T 10w-30 MOTUL SA
FB-419972C Mercury Racing 25W50 Synthetic Blend Mercury Marine
FB-43069W Marine Full Synthetic 5W-30 Yamaha Motor Canada Ltd.
FB-43072W Marine Performance 10W-30 Yamaha Motor Canada Ltd.
FB-43547X ADDINOL Aquapower Outboard 4T 1040 ADDINOL Lube Oil GmbH
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-781778Y Marine Four Stroke Full Synthetic 10W-40 Penrite Oil Company Pty Ltd
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-80814K Nautic 4T SAE 10W-30 Comercial Roshfrans, S.A. de C.V.
FB-80815K Nautic 4T SAE 25W-40 Comercial Roshfrans, S.A. de C.V.
FB-83138K RAVENOL OUTBOARDOEL 4T SAE 15W-40 Ravensberger Schmierstoffvertrieb GmbH
FB-85003K Quicksilver Synthetic Verado 4-Stroke Outboard Oil 25W-50 Brunswick Marine in EMEA