Would like confirmation on using anti freeze for winterizing,<br />We took a large plastic barrel and cut it to size so that we could cover the water intake on the out drive, we filled the barrel and started the motor and ran it until the stat opened, we waited until the liquid in the barrel was quite hot and then checked all hoses which were hot.<br />We then moved to the second motor and completed the same procedure.<br />Our thinking was if the stat is opened and the antifreeze is circulating it has to be good,<br />Note we also re checked the freezing point of the anti freeze after completion to ensure we had good protection -30c