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			I agree that driving properly will not only give the owner more fun while he or she owns the car, but seams to be proper for these engines. 
 
However, I beat the bush pretty hard trying to find the right oil, and haven't heard of Royal Purple shearing.  I'm not saying I didn't miss it, just haven't seen anything as of yet.  BTW I'm using RP 5w-40 at this time.
		 
		
		
		
		
		
		
		
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