We have a little bit of extreme weather here from time to time. I think the most important things are to make sure the gas tank is completely full before parking it and to put a good battery tender on it. It is also recommended that you inflate the tires extra hard to prevent flat spotting (60 lbs I think but check your owners manual - this information is all in there) and give it a fresh oil change before putting it away.
I've been storing my car for about 6 months each winter with temps ranging down to -40 and I am still on the same battery.
I notice this is your first post so allow me to point out the search button above, and suggest that you use it. Most questions have been answered repeatedly in here, including the one you just asked.
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'99 black 986
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