I know it works cuz when combined with a good grille block:
*in brutal winter temps, it goes off fast idle much more quickly
*effective defrost is available almost immediately
*after several hours of being parked I can crack open the hood a bit and stick my hand in there and still feel the heat
*I can see, if the car has been snowed on or frosted up, that the hood now stays completely snowy/frosted but really melts clear at the gaps. I've made no effort to seal the gaps as of yet.
The cardboard blanket also doubles as a nice creeper substitute out on the road.
I know I could find a more insulative material for the car- or apply my own foil to that cardboard- but it seems to work well the way it is. The truck blanket definitely does the job.
Last edited by Frank Lee; 10-09-2009 at 06:25 AM..
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