Quote:
Originally Posted by 5cilinder
The reason it happens to the dpf engines is the thinner 0w30 oil in combination with the fuel dillution and the 30000km oil change interval.
The previous euro3 engines dont have this problem due to the thicker oil with more zinc dopes and no fueldillution.
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I have been running D5 Euro 4 engines for the last 11 years and have used Mobil 1 ESP 5w-30 exclusively changing it along with a new filter every 10k.
It's a good quality oil with low ash to look after the DPF.
I have experienced no ill effects at all, however as you say 0w oil is specified.👍