Quote Originally Posted by DOCDRS View Post
NO do not do this.....it will not work.....the thermostat lets hot coolant out... most of the antifreeze will bypass the block and flow right out the exhaust mani. What little that does enter the block will be so diluted with block water you will have no freeze protection.
I’ve done this for 4 years in northern Saskatchewan never had a problem I usually run the boat dry for about 10 seconds to get as much of the water out before putting 12 jugs of anti freeze through


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