
 Originally Posted by 
rapserv
					 
				 
				When you guys say HPR5 .. do you mean HPR5 or HPR Diesel 5?
Two different spec oils and one FULL synth the other Semi-Synth.
			
		 
	 
 HPR5.
I changed to that approx 60,000 klms ago (I'd have to check my oil results to confirm), now on 212,000k.
I get the oil analysed at every change and noticed a slight improvement in wear metals as a result, eg, Chromium dropped from 5ppm to 3ppm.
I change oil/filter every 7-8,000 klms and use Wynns Professional engine oil additive.
				
			 
			
		 
			
				
			
			
				Before: Ser 2a LWB, Ser 3 S/W, 1979 RR 2 door, 1981 LR Stage 1 V8 (new), 1985 LR 110 V8 County (new), 2009 RRS TDV8
Now: MY13 D4 TDV6. "E" rear diff. Cambo's magic Engine & Auto Tune. 1968 Austin 1800 Mk1 auto (my 5th)
			
			
		 
	
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