Didn't make sense to me either, but it was very noticeable in the Jeep.I have never seen a significant difference in MDS engagement between the factory fill, PP 5W20, M1 5W20 and M1 EP 0W20 on my HEMI. I also do not understand how oil can affect the NVH of this system’s engagement, especially if all of the oils were of the same viscosity and in good condition. @Timmastertech probably has a much deeper understanding of this system than I do; perhaps he has some ideas.
And, as I noted, I didn't notice a difference between any of the other oils I've tried in it either.
Part of the reason for this thread is to figure out WHY. I'm hoping to have somebody (ideally more than one) confirm a similar experience and then we can work on the mechanics of it.
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