Winterize It Pro is the first winterizing and storage solution in a aerosol can for your cooling system. Protect & store your marine engine using this quick and easy method that is perfect for outboards and personal watercraft. Winterizing your marine engine with Winterize It Pro at the end of the season is the best way to guarantee that next season is full of fantastic on-water adventures, because a properly winterized engine will be clean, safe and ready to run come spring. Advantages of Winterize It Pro: Up to 90% faster Ease of use Virtually no mess No tools required Less storage space 75% lighter Engine does not need to be running when using Winterize It Pro How does Winterize It Pro work? Winterize It Pro is designed to speed up the process of properly protecting your cooling system. It expels all remaining water with its powerful propellant. As the propellant pushes the product through the ports, it leaves behind a protection that will prevent any remaining water to freeze. Winterize It Pro contains a proprietary ingredient in the formulation which adds a protective coating to the internal metals, seals, water pump and water pump housing. What position should my engine be in when using Winterize it Pro? The engine should be on a level surface and the engine/drive should be in the down position. Will Winterize It Pro work on my outboard and personal watercraft? If your marine engine has a built in flush kit that connects to a garden hose (spigot), then the answer is yes. If not, you will need to retrofit your engine with the appropriate connection. Most engines manufactured after 2000 are equipped with the connection. Is one 10.7 oz. can of Winterize It Pro sufficient to protect my engine? Although 10.7 oz. is adequate for most engines, some engines may require more than one can. You must clearly see Winterize It Pro exit the exhaust chambers to know it has completely protected your cooling system.