Re: Fuel Polishing

Bill Kinney


Many people have installed, such a system, and I'll let them tell you the how's and why's.  

Our boat did two circumnavigations and accumulated over 8000 engine hours with NO primary fuel filter at all, just a water separator.  Despite the obvious success of that arrangement, I did replace the Amel installed water separator with a standard Racor primary filter because it made me feel better.  

I have had sailboats with diesel engines for over 30 years and have never had a fuel issue that a "fuel polishing" system would have fixed.  To be clear, I have also never had a common rail engine that might require a higher level of fuel filtration.

No matter if you have a fuel polishing system, or not, always be careful where you buy fuel.  If the source is even the least bit dicey, use a good quality filter funnel when filling your tank.  Keep the filter funnel clean and dry, and you're very unlikely to have a problem.

Bill Kinney
SM160, Harmonie
Annapolis, MD, USA

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