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Old 06-18-2006, 09:44 AM   #2
PorscheDoc
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Join Date: Aug 2005
Location: Overland Park, KS
Posts: 180
In hot weather at idle, you have no head wind speed to flow through your radiators and cool the car down. Once you start moving faster, you have more air going through the radiator, hence why it cools down. Completely normal.
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Karl Wilen
RennsportKC
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