How to Winterize a Mercruiser 4.3L V6 Alpha Sterndrive Engine

Mercruiser produced a variety of 4.3L marine engines over the years. These engines also varied in the style of cooling and drain systems they were offered with. Regardless of whether your particular engine is equipped with a manual or automatic drain system, the Mercruiser 4.3L V6 w/ Alpha Sterndrive marine engine we winterize in this video outlines all of the basic steps required for winterization.