I plug in my F-350s engine block heater every night now, we are seeing temps in Northern California below 30 F at night. But when I start up the truck in the morning, the temperature gauge for the coolant doesn't even rise. So I've been warming in up for about 10 minutes, that gets the needle to...

I live in Missouri and it gets down to 0-10 degrees in the winter. i have a 2008 6.4 and i do not know if i have the block header cord or not yet, i havent looked. my previous truck was a 2000 7.3 and i plugged that in or it wouldnt start in the cold mornings. do i need to worry about...