For Rejects CK-4 Oil Formulation for Powerstroke Engines

shadyninja

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Another industry standard to reduce emissions, yet increasing engine wear. Say it ain't so!
Beast... AMSOIL is already addressing this...



Posted: November 10, 2016 - Tech Update



Ford Motor Company recently released its position on the upcoming new API CK-4 and FA-4 diesel oil specifications, claiming it will only recommend diesel oils that meet the Ford WSS-M2C171-F1 specification or oils formulated specifically for the previous API CJ-4 specification.


Questions have arisen regarding why Ford would condemn use of CK-4 and FA-4 products in its Powerstroke engines. According to Ford Service Lubricant Technical Expert Ron Romano, “6.7L engines tested on CK-4 and FA-4 formulations had experienced valve train wear not encountered with CJ-4 formulations. The CJ-4 formulations in question contained more than 1,000 parts per million phosphorus, an effective antiwear ingredient, while the CK-4 and FA-4 formulations were below that threshold. As a result, Ford declared that it has wear concerns about the use of CK-4 and FA-4 formulations with less than 1,000 ppm phosphorus in new and older Ford engines.”


All current AMSOIL synthetic diesel oils contain a boosted level of wear protection above the requirements set by the Ford specification. The new AMSOIL Signature Series Max-Duty Synthetic Diesel Oil and Heavy-Duty Synthetic Diesel Oil formulations launching in February will also contain boosted levels of wear protection, and they will carry the Ford WSS-M2C171-F1 specification. AMSOIL Dealers and Customers can be well-assured that all Ford Powerstroke engines, no matter the model year, are well-protected when using AMSOIL synthetic diesel oils.
 

shadyninja

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I use Amsoil HD Marine oil. It's designed for pre-2007 emissions systems and is robust as ****.
Correct, or newer engines that have been deleted.

I know a guy with a Duramax doing 50,000 mile OCI with that Diesel /Marine oil.
 

UnleashedBeast

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AME 15W-40 is the most robust Diesel lubricant on the planet. At least, I've yet to see better reports from any other diesel lubricant.
 

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