Re: In Line Fuel Filter....Marine vs Automotive???
Its not the oil. Pre-mix 2-stroke oil is soluble in gasoline and it will easily pass through the filter.<br /><br />It's not the glass. Glass filters are permitted in marine applications (although not recommended). <br /><br />And it's not the vacuum, as most outboard fuel pumps are designed with filter systems in mind and most in-line filters are directional.<br /><br />The Purolator filter isn't recommended for marine use simply because it isn't USCG approved. The USCG requires that each fuel filter or strainer be supported on the engine or boat structure, independent from its fuel line connection, unless the filter is inside a fuel tank. This would not apply to portable equipment. There are also other requirements, like the filter's hose connection must remain leak-proof if a hose clamp fails (nipples). <br /><br />Unless your outboard is portable, I would recommend using a small and inexpensive water seperating filter that mounts on the boat. Water is the number one cause of marine fuel contamination. And you could hook your quick-connect hose right to the filter system. No worries. The filter you have works, and the glass is hard to break. But I would not recommend using it.