Thanks, John. I am a little surprised at the quoted API specs, it still seems very low for a modern diesel. In fact the numbers look very similar to those quoted on my petrol version of the 0W40.
As to the information it is quite detailed for public consumption although most oil manufacturers will not share their additive formulations for obvious reasons, but one can download a technical data sheet and this can also be very useful for comparing oils giving information on the oil properties and performance tests done under ISO and ASTM criteria.
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