Free tool
steps by engine type and water
Choose your engine, water and where the boat spends the winter: you get a checklist to tick off and print. It's a reminder — your engine manual comes first.
Common steps in BoatUS's winterizing resources, Discover Boating and storage operators' guides, grouped by system. Fogging, antifreeze type and drain points differ by engine: follow your manual. More detail in the winter storage guide.
Where it rarely freezes, owners usually still stabilize fuel and service the engine before a long layup; draining water systems matters most where temperatures go below freezing.