-100 Basic Sterndrive Winterization Kit This kit includes everything to make winterizing your sterndrive engine easier. For use on carbureted and EFI engines. Winterization Tank Includes 5 gallon jug for holding antifreeze and tubing. Motor Flusher Flushes contaminates from lower unit cooling systems. Quickly removes salt and mineral build-up with a simple flush that slips over side water inlets on more inboard and outboard lower units. 1 Gal. -100 Anti-Freeze Star brite -100F -73C Non-Toxic Ant