After exploring my options, I have decided that the easiest way to add "insurance" to cold starts this winter is a lower radiator hose heater (basically the same idea as a block heater, though a little easier to install). I have searched the net and visited my local dealer to determine the diameter of the lower hose on my L5030HST. Nothing. They do not stock one and the parts and service guys have no idea, and worse, no idea for me to determine the diameter, other than cut it and see. There has GOT to be a way.