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Old 11-16-2012, 12:26 PM   #2
brian325is
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Join Date: Dec 2009
Location: Toronto, Canada
Posts: 190
Block heaters are necessary in very cold climates. Cars left outdoors in northern ontario won't even turn over let alone start without one. The best kind are the ones that replace the frost plugs, not sure if that is an option on a Porsche but the magnetic ones help. Never heard of a rechargeable one.
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