
 Originally Posted by 
Tombie
					 
				 
				Nothing sinister or otherwise
Using the flush shouldn’t be needed if doing regular changes and using quality oil.
			
		 
	 
 That's what I have always thought, but Penrite recommends it each time so I am confused. Like most on here I change the oil each 12,000km or so. I flushed for the first time when I changed over to Penrite at about 50,000km and again at the last change at 104,000km. So I'm having an each way bet, I suppose!
				
			 
			
		 
			
				
			
			
				2013 D4 expedition equipped
1966 Army workshop trailer
(previously SII 2.25 swb, SIII 2.25 swb & lwb, P38 Vogue, 1993 LSE 3.9V8 then HS2.8)
			
			
		 
	
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