Earning NMMA® FC-W® Oil Certification
By now, you’re probably aware that automotive lubricants aren’t adequate for use in your four-stroke outboard, and that you should look for marine-grade oils displaying the National Marine Manufacturers Association® (NMMA®) FC-W® (Four-Stroke Cycle, Water-Cooled Gasoline Engine Lubricant) certification label.
Have you ever considered what that FC-W® rating really means? We wanted to know, and our findings gave us a new appreciation for all the behind-the-scenes work necessary to prove an oil is worthy of the FC-W® approval.
09/10/2012
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