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the new PC-11 oil.

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It will be interesting to see how this all ays out. As of the latest info at http://www.whatispc-11.com/ there will be 2 types of oil, one for current and future engines built specifically for 30w oil and another spec similar to CJ4 for engines that call for heavier viscosity. Even the website I linked recommends "always following your manufacturers recommended viscosity." Many new engines including the DD in the above video and select Cummins engines are currently coming from the factory with 30w oil.

http://www.whatispc-11.com/new-api-oil-standard-may-ready-2017

 

"One of the concerns with any new oil category is its backwards compatibility. Arcy says it is too early to tell whether the low-viscosity version of PC-11 will be backwards compatible and added that we are as much as a year away from being able to discern that."

 

 

 

Direct quote taken from the last paragraph of the link above.

 

 

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Welcome To Mopar1973Man.Com LLC

We are privately owned, with access to a professional Diesel Mechanic, who can provide additional support for Dodge Ram Cummins Diesel vehicles. Many detailed information is FREE and available to read. However, in order to interact directly with our Diesel Mechanic, Michael, by phone, via zoom, or as the web-based option, Subscription Plans are offered that will enable these and other features.  Go to the Subscription Page and Select a desired plan. At any time you wish to cancel the Subscription, click Subscription Page, select the 'Cancel' button, and it will be canceled. For your convenience, all subscriptions are on auto-renewal.