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One of the most common questions we hear from boat owners is: Aren't a fuel water separator and a fuel filter the same thing? Not quite. While both are designed to protect your engine, they remove different contaminants and serve different purposes. Understanding how they work together can help you prevent fuel-related issues and extend the life of your Mercury outboard. The Fuel Water Separator Is Your First Line of Defense Before fuel ever reaches your engine, it should pass through a fuel wa …

If your outboard is going to sit for several months, parking the boat and waiting for spring isn't the best plan. Fuel can deteriorate, batteries discharge, corrosion continues, and water hiding inside a gearcase becomes especially concerning where freezing temperatures are possible. Mercury's exact winterization procedure varies by engine, so your owner's manual should always be the final reference for your model. But whether you're storing a Mercury FourStroke, Verado, Pro XS, or an older Merc …