Richard, i didn't know you could polarize a alternator, i thought you could only polarize a generator. a alternator it would blow a diode. Pete Fantasy
I have lots of experience with cold weather. Around here we have 10 months of winter and 2 months of poor sledding.
I can't speak for the Antifreeze heater, but I had an oil type heater on my 4107. It worked great. After about 10 minutes, it was ready to go, but that's in Mississippi where it rarely got below 40 in the winter.
GMCs rule couldn't resist...Brian B.
Maybe so... but, "Prevost Prevail" I couldn't resist either!!!
Just curious Brian, what does an overhaul cost?