I have a similar phenomenon, and have been told that many others do as
well.  Mine will drip a little when it gets really cold (below about 15
F).  It will leak more on startup at low temperatures.  I have to add
coolant periodically, too.  My trusted mechanic tells me that the head
seals need redone, and I will have him do them.  I do not have this
problem in warm weather.  I don't see any coolant leak after the engine
warms up, but I suppose it could be evaporating then.  Some have told me
to ignore it until I have some other reason to remove the heads.  I have
always taken the approach that if something is not working properly, it
should be fixed.  I fear having a head really start to flow coolant out
at a time and place that is quite inconvenient.

David McNeely

On Tue, Jan 5, 2010 at 8:32 PM, C. Chris Snyder wrote:

> This morning after it hit -7 here, I noticed that anti freeze was
> dripping from the middle of the bottom of the engine. It lok like it
> is driping from 2 places.
>
> I am thinking it is the dreaded head gasket. I sure hope not. It was
> to cold to really check it out but, I did look at all the hoses and I
> am pretty sure it's not them.
>
> an ideas and, is it possible that since it never has leaked before
> this cold weather that when it warms up (If it ever does) that it will
> stop on it's own?
>
> thank list for all your  wisdom!
>
> Chris