Good one tweak'e, that was the document that I had a link to in post 2 of this thread however the link broke and I have not been able to find the document again. Perhaps one of the moderators would be kind enough to update the link on that post when time permits as it is a great read?this may be posted already but otherwise some reading for guys.
http://www.google.com.au/url?sa=t&rct=j&q=hy high ash oil for japanese diesels&source=web&cd=2&ved=0CD0QFjAB&url=http://www.markerink.org/WJM/HTML/THE-EFFECT-OF-ENGINE-DESIGN-ON-OIL.doc&ei=T2DhUOuxOqSHmQXqsYD4Ag&usg=AFQjCNGvxvZlH1qQhiia1t_EOmi5Wv7xBA&cad=rja
Interesting to note that Caltex's recommendation for a Japanese engine in the document "[FONT="]Caltex's recommendation for Japanese four-cycle car, truck and bus diesel engines is Delo CXJ Multigrade SAE 15W-40[/FONT]"
Of course the CXJ was superseded by the Delo 400 Multigrade SAE 15W-40 which was "specifically designed for the latest electronically controlled diesel engines, including those fitted with EGR, experiencing high soot loading"
I must say that I am not a fan of 5-30 oil for a diesel in Australia to begin with, secondly, it only has a cf rating which is a very old diesel spec. It does look like quite a good petrol engine oil though (although I tend to stay away from 5-30 oils there as well lol).whitey1000 said:i went down to the caltex depot and the women there told me to get a drum of havoline fully synthetic c3 sae 5-30 api sn/cf