Excellent pricing, however....
That oil, and it's 5W-40 brother are C3 rated oils which are low SAPS (C= catalyst compatible)
The phosphorous level in that oil is only 0.08% with an overall sulphated ash level of 0.8%
These are low levels and there may not be quite enough protection for the cam lobes running the unit injectors which run under high load. (unless other anti-wear and extreme pressure additives are employed)
There have been problems with lobe failures in the past, (Often using Mobil 1 5W-30) and I don't know whether this was an oil or metallurgy failure.
All the modern small catalyst equipped diesels these days are common rail, not unit injector. I also notice that on the PDS it doesn't mention small commercial diesels, only passenger car and light duty diesels, but that may just be a typo. [edit] It does say meets ACEA B4-04, which is good, (B3 and B4 include VW specific piston cleanliness tests and have a higher HTHS spec than B1 or B5) but the ACEA have updated specs since then and i don't have the earlier specs sheet here.
I'd double check with Caltex first, and of the 5W-30 and 5W-40 I'd go with the slightly heavier oil in a hard working TD5.
Have a read of the PDF below.
It is from a rival oil company and I'm not advocating their product at all, but it is an interesting read.
[edit] Price up some of this next time http://www.caltex.com.au/ProductsAnd...n.aspx?ID=1734
It's designed for Euro II/III spec diesel engines. (E4)
Don't be put off by the 10W-40 grade, it's a full synthetic and will flow more than enough in any winter temp Australia will see and i'm guessing will have a much lower NOACK # (measurement of an oils volatility) than most all 5W-40's and shear less too.


 
						
					 
					
					 
				 
				
				
				
					 Reply With Quote
  Reply With Quote 
						
					 
						
					
 Originally Posted by davrac
 Originally Posted by davrac
					
 
						
					 
						
					 
					
					
 
				 
 


 [/IMG]
[/IMG] 
						
					

Bookmarks