"Tauno Voipio" wrote in message
...
Matt Whiting wrote:
Tauno Voipio wrote:

Peter R. wrote:

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Why is it that here in the Northeast US seemingly no one preheats their
automobile engine before start-up in very cold temperatures? Is the
long-term
damage the same for both autos and aircraft engines? If so, why do you
suppose auto owners don't typically do this? Is it because that most
auto
owners do not keep their cars very long?


Here in the north of Europe We'll pre-heat our cars if
possible, if the temperature goes below +5 C (whatever
it is in F, around 40?).

You can force an engine to start even at -30 C, but it
means that the poor thing runs some time practically
dry of lubrication.


Really? Where does all of the oil disappear to that was there when the
engine was shut down?

Matt

The lubrication is based on fluid between the metal
surfaces. When the oil thickens enough, it will not
get to the small spaces between the metal surfaces.

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Tauno Voipio

Research will tell you the oil is allready there and being cold and thick it
tends to go nowhere and in fact does its job rather well. Many engines are
started a far colder temps regularly and suffer no damage and make TBO.
Far,far worse to let an engine sit.