I have it on a very high authority that the rumors GDE started about a forthcoming change in oil recommendations are in fact true and that corporate it's simply waiting on the new API standards before sending a supplement out to owners and dealers. I had no idea about this and literally had to research it.
After a couple hours, I see why they haven't yet sent out anything. Guessing a liability issue on their part. You know, wait for the new oil specs and say that is the reason for the change. Not the the original MS11106 is inferior. My best guess is that the new recommendation will be 5w or 10w30 meeting FA-4 and oils of the same viscosity meeting CK-4 or the old ms11106 as "acceptable." something that nature.
PC-11 | PC-11 Explained
***EDIT***
Here's a link to the thread on the precise spec change per FCA: http://www.ram1500diesel.com/forum/ram-1500-diesel-maintenance/13009-revised-oil-specification.html
After a couple hours, I see why they haven't yet sent out anything. Guessing a liability issue on their part. You know, wait for the new oil specs and say that is the reason for the change. Not the the original MS11106 is inferior. My best guess is that the new recommendation will be 5w or 10w30 meeting FA-4 and oils of the same viscosity meeting CK-4 or the old ms11106 as "acceptable." something that nature.
PC-11 | PC-11 Explained
***EDIT***
Here's a link to the thread on the precise spec change per FCA: http://www.ram1500diesel.com/forum/ram-1500-diesel-maintenance/13009-revised-oil-specification.html