Originally Posted by
EXbowtieguy
I plug mine in anything -30...... May not need it but my truck seems to love it ! (no growl)
Now if I could figure how to make it not frost the windshield I'd be straight !
I plug mine in a lot also. It really likes warm starts, they all do.
Set your heater controls to full hot and on Defrost. Heat rises right up and out.
I used to plug my semi in all winter, and I never had ice on the windshield. Temps as low as -15*f, no ice.