I work and very often live in a very cold region of Canada. I have been up
to places like Frobisher Bay, Bay Comeau, Ramouski, and others even more
north. We have had some winters where the temperatures were down to below
the minus fifties (<-50 deg Cels). I have left my car or the truck outside
all night for more than 15 hours, and they started in the morning. All the
ignition system, gauges, and etc., are computerized in these cars. Even the
radio would play CD's after starting in this cold. The only thing I can see,
is that it is best to use synthetic motor oil, because regular motor oil may
become too thick. The proper rated antifreeze and wiper fluid is essential.
As far as the electronics is concerned, I have never had anything fail from
the cold. There are many vehicles used in the far north of Canada for
exploration and industry. They are operating under severe cold conditions
during the winter time.
I would be curious to know why anyone would want to freeze car keys? !!!
--
JANA
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I'm designing a product that involves freezing of every day car keys.
The keys that will be frozen are obviously likely to include
electronics.
Are there any components inside modern day electronic keys that are
likely to be damaged by freezing?
"Freezing" meaning what temperature? -.01 C, or -40 C? Makes a huge
difference. Consumer electronics (especially for the automotive
industry) are probably good to -10 or
-20 C. Lower than that is the realm of milSpec parts...you know...the
"gold-plated" stuff that is expected to work -100 to +95.