On Mon, 18 Jul 2016 17:37:15 -0700 (PDT), True North
wrote:

I can't believe y'all said that. Anyone with half a working brain knows that you change the 4 stroke engine oil when winterizing. Y'all better get Mercury's maintenance manual.....or better yet, find a competent person to handle your maintenance/winterizing.

There are actually 2 schools of thought on that. One says store it
with the oil that was in it and change it in the spring. The other
says store it with new oil but you have the problem that the winter
moisture is now in your new oil. I suppose a belt and suspenders guy
would change it twice.
Fortunately "winterizing" here means my wife puts a jacket on the
boat. I am still in my shorts and T shirt.
I end up changing my oil 3 times a year anyway just for hours.