Originally Posted by MattsCraft
? - Did you drain the block water prior to running on antifreeze? If not you have at least 50% diluted antifreeze in the block. This is an important step or you need to start with a much higher freeze rating antifreeze. If you started with -25, I would suggest just dry blocking from here, empty the J hose and tranny elbow, blow out the heater if you have one and you would be safe.
Not a good plan to go through a Canadian winter without a healthy dose of antifreeze in the block. Dry is not usually an option.