Bass Boat Care: Checking Your Lower Unit with Boatmasters

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How to check the fluid in a lower end unit of a Mercury Optimax 250 Pro XS. Always make sure your ready for the water by performing a lower unit check. For Mercury, Mercruiser, Evinrude, OMC, Volvo Penta, and Indmar parts and accessories, please visit boatmasters.com

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