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					Originally Posted by  Frodo
					 
				 
				
The environmental (and frugal) part of me quietly objected to wasting 9 qts of expensive oil if it was not necessary—that notwithstanding the fact that I realize driving a Boxster isn't the most environmentally friendly thing I could do.  (I have an 'out'...my wife drives a Prius and, unlike me,  loves it.  So we more or less offset each other    )  
			
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I daily drive a turbo RX7 your offsets mean nothing LOL 
But yeah no reason to drop all your oil.  Just put a rubber plug (or just your finger) in there while you figure out what went wrong.  Its not like you're holding anything but a few centimeters of head pressure.