I bought my first diesel Chevy truck last summer and now its getting cold around here. What temps should the grill and lower air dam covers go on and is there any length of time the truck should be plugged in? My truck is a 2005 3500 duramax.

Just wondering,
KHeinz

Look here:

http://www.dieselplace.com/forum/showthread.php?t=51797

and here:

http://www.dieselplace.com/forum/showthread.php?t=51443

and here:

http://www.dieselplace.com/forum/showthread.php?t=51846