Not sure about if it was winterized or not nor if had been cranked in the 12 years. Its not a closed coolant system. But i pulled the boot it drive shaft looks good the out drive was just serviced a few months ago before i got it. I replaced the thermostat the impeller rebuilt the carb clean the cap she fires up and runs in a 330 gal tub shifts smooth. Just replace the lower through haul fittings going to reseal the out drive and take her for a test drive this weekend. We live on the ms gulf coast it doesnt get cold enough to need to winterize down her 40's is about as cold as it gets.