-200 MerCruiser Winterization Kit A comprehensive winterization kit for MerCruiser engines. This winterizatoin kit includes genuine Mercury fuel stabilizer and high performance gear lube to keep your system in tip top shape. Fuel Stabilizer to keep the fuel fresh during the storage season. Anti-Freeze to help protect against freeze damage from water that may still be in the engine block after draining. It also protects from corrosion build up during the storage season. Changing the gear lube is