Their fine I live in Canada and mine is hardly plugged in. The coldest its started read off the spartan was -2 oil, -6 coolant. She fired up, no it took a while before I drove it because I am anal about moving it if coolant and/or oil are bellow 100
-40 here in the ND Oil Fields.. About the only thing that started was the 6.4L.... For those of you that think the wind doesn't affect equipment, Tell me why my semi trucks will start when its 0 degrees with no wind but when its 0 then add tons of wind that brings it to -40 with wind chill NOTHING starts? The air temp gauges in the cab will say 0 but with wind its -40... Not arguing, just saying!
What school you at?
And for ****s I start 6.4's in below 30 without cycling glow plugs. They fire right up just like a duramax