In news:Xns97F34EF156A5thathillbillyyahooco@130.133.1.4,
John Griffin <thathillbilly@yahooie.com> typed:

"Amanda Angelika" <manic_mandy@hotmail.com> wrote:

In news:g8cba29rnhb70gdi4k2e8o1pkrslcgc6er@4ax.com,
Bookman <thebookman@kc.rr.comNULL> typed:

Nope, neither.  When the engine "seizes", overheated metals
have bonded to each other.  If it were simply a matter of
"metal expansion", the engine would free up once it had
cooled down and contracted.  Lack of oil or lack of coolant
can both contribute to said overheating.

You are clearly living in a theoretical fantasy world. An
engine that seizes up due to overheating will normally lose
power and stall a hell of a long time before the metal fuses
together LOL. I've had engines seize on me at over 70mph due
to overheating which caused no noticable permanent damage.

I don't doubt that you've had engines seize on you.  The
preventive measures are sooooooooo fucking difficult to
understand and implement, and the temperature gauge is always a
mystery, especially that red part.  Anyway, if you understood the
fundamental principles, you'd know that the car's speed is
immaterial.  The reason your engine quit at 70 mph was that you
were coasting down a long hill after much of the coolant boiled
away through a defective radiator cap or a hole in your hose, and
when you let it run at idle speed it stopped circulating the bit
of coolant that was left. One other time, you were going 70 in
first gear at 8000 RPM because someone told you to always keep
the engine speed up if you have a leak in the cooling system.
Maybe you didn't actually do those things, but surely you can
understand why someone would think you did.

If you have to go somewhere on a hot day, take a bus.

Totally wrong actually in the most memorable case the weather was unusually
cold for the UK, like record breaking cold, and the anti-freeze simply
wasn't strong enough. The windchill caused the radiator to freeze solid,
disabling the cooling system, so the engine itself overheated.

Other times I have had engines overheat involved older cars where the head
gaskets have been on the way out.
-- 
Amanda