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					Originally Posted by  Gelbster
					 
				 
				
			
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Not really, because the Castrol TAF-X product, which is a GL-4 gear oil also sold under their "SynTorq" brand in Europe is a different product developed to address the poor low temperature shifting properties of GM and Chrysler products, and which is available in the US exclusively under GM & Chrysler product part numbers.  While it is an interesting low temperature gear oil, completely water-white in appearance, and is also used widely in Nissan products, the Castrol TAF-X carries the API GL-4 rating which means it is still different than the Porsche oil which does not fit in any GL category.  Even Mobil 1 once commented that the Porsche five speed gear oil was so unique and represented such a small market segment, that they had nothing even close to matching it and would not be developing anything suitable.
		  
		
		
		
		
		
		
			
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				“Anything really new is invented only in one’s youth.  Later, one becomes more experienced, more famous – and more stupid.”  - Albert Einstein
			 
		
		
		
		
		
			
				  
				
					
						Last edited by JFP in PA; 04-17-2015 at 08:57 PM.
					
					
				
			
		
		
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