Quote: I never plug my Dodge-Cummins in, that's what the GRID heater is for. My work Cummins and Volvo get plugged in if it gets down to zero Fahrenheit and the old Ford and GM diesels needed plugging in below about 10 fahrenheit it seems. I've started a Dodge Cummins at -40 not plugged in overnight.
Sheldon
As he says...A Cummins will start at almost absurd low temperatures without the block heater plugged in. I use mine occasionally, but it's more for the convenience of having a luke warm block so the windows defrost quicker. We get the "foggy" cold on the coast and the vehicle is usually covered with thick frost on a -10 morning. And diesels take frigging forever to warm up....
