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					Originally Posted by Topless
					
				 
				Ouch! Overfilling with oil can kill the AOS pretty quick.   
I use Econolube for annual oil changes but not without a Porsche inservice seminar with the service tech first.  I assume they no nothing about a Porsche. 
1. I supply the oil, filter, crush ring and specialty tools . 
2. Drain for 20 minutes warm. 
3. Required torque settings. 
4. Fill with 8.5 qts only, I will top off tomorrow. 
$20 bucks    
I prefer this method to doing it myself in the garage and then disposing of the used oil later.  
			
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Disposing of used oil is free.