Thanks everybody and for that link too mud. Is that engine block warmer better than coolant based?

Hey Big Jim, is there usually problems with either of these kinds of heaters? If there troublesome I'd better go ahead and spend the money for a decent one.

Which gotsd me thinking..Which kind yall think is better overall? a block heater or a coolant circulator? I like the idea of keeping the entire engine warm for the start up. My opinion is that tolerances will be most out of wack the further the engine is from full operating temp, and heating the whole thing would help 96k mile engine start easier. Of course coolant warming wouldn't do much for the oil sitting in the bottom of the pan. If it wouldn't hurt hell I might put both of em in. This is the dd I depend on and the motor doesn't snap to life like the 90 maxima does. Not unusual to hit zero F deg around here, and ya know what the f stands for..

btw, finally mpg tested at all highway speed and got a 17.8 so at least things are about where they should be. Get the manifold replaced and hopefully I'll se 20.