Howard H.

Well-known Member

I wonder how many folks got caught off guard by the super cold snap (especially down south) and wound up with an engine block cracked from freezing??

I've heard with "some" antifreeze in a vehicle, the coolant will just get mushy - even if the temp gets below what a tester actually shows for the coolant. Not sure if thats true of all antifreeze types or not.

I had a big stationary engine years ago that I knew didn't have enough antifreeze - so I was over there in the dark that night of the first big cold snap trying to drain it before it got too cold. Got coolant draining out of the jacket draincocks and thought I was ok - but later found it went ahead and cracked one side... I was able to stitch it up with some nickel rod, but always have wondered how it was able to drain coolant and then still freeze tight enough to crack...
 
I had a car one time I knew had water in it,when I got home tat afternoon the fan would only move a freckle. I started it and let it run for just a few minutes with the fan belt off.I shut it off and let it heat soak for a while. I did that a few times and when the radiator stared steaming just a little,I drained it and filled with antifreeze. It was fine, but it would have been a boat anchor by morning.
 
A lot of marine engines will be cracked.

A lot of wet storage boats will sink. Sometimes when they freeze the break is below the water line, or a freeze plug pops, and they take on water.

Down there they rarely bother to drain them, some owners are not even aware it needs to be done.
 
I would think most road vehicles down south will be good on coolant. I predict there will be more than a few damaged windshield washer systems though. Try buying -20 washer fluid in the deep south.
 
I checked all of mine and my son's before hand. we knew this was coming. there may have been some non believers but ........
 

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