The $25 lower radiator hose heater will be your best friend when it's -20F outside and your engine is 50*F
Don't forget the purple wire mod for afterglow!
I drove our tractor away while it was still plugged in when I was 12. Whole lotta sparks, I haven't forgotten to unplug one since
Reminds me, on our old Allis-Chalmers D15 you have to manually hold the key counter-clockwise to run the glowplugs. Because the key is so hard to turn, and it's usually freezing out, you never had to worry about over-glowing because your hand got tired before the 30second limit
