Glend wrote:
There does seem to be a body of evidence that 0W-40 oils are part of the rocker wear problems that some owners experience.
I'm not convinced about this one. I've seen these suggestions as well but you need to be a bit careful making casual observations when you don't understand the statistics. I don't know the real numbers but I suspect the vast majority of owners go by the book and use 0W40, let's say 80%. No if you randomly pick half a dozen vehicles with rocker failure there is a very real probability that they all used 0W40 purely because this is the prevalent oil.
You can't make a fair comparison with the Euro model which had a different oil spec because the EGR configuration is different and we all know what that can do to the oil.
DOC4444 wrote:
The new Delvac 0W-40.......
Actually, it's not so new, Delvac 1 replaced XD3 about 3 years ago. I've been using it since they introduced it here and was using the XD3 before that. With the exception of the factory fill these are the only 2 oils that have been through my CRD. FYI it costs a bit over $100 for a 4x4 at my local wholesaler.