PC-11 Oil Standard

[user 31223]

I suspect this will end up in NEPRT as its Oil - but i found this on another forum i visit and thought I would post it here -As i know some use Rotella T6.

Those of us that use oils like Shell Rotella in our bikes will have to keep a eye on the changes that are coming to diesel oils. A new category call PC-11 is going into effect for oils used in diesel engines. I'm not sure just yet if the change means that the new oils will still be safe for use in bikes with wet clutches. You can find out in this link what the new category is about.https://www.whatispc-11.com/ I did not find anything in there that specifically addresses wet clutches. There is some stuff in there that implies the oils will contain friction modifiers. If so then that would be bad. I guess we will just have to be careful and pay attention to the labels to make sure they continue to list meeting the JASO-MA standard.

The oil will have two different classifications CK-4 and FA-4. The CK-4 classification is suppose to be compatible with the CJ-4 classification of the current Rotella oils many of us use. It probably will be the one that has the most hope for still being safe for wet clutches.

 

[Uncle Hud]

This is a new oil standard/specification? Don't see anything NEPRT about that -- but who cares?

<edit five mins later> It seems that Shell will be redoing the recipe for T6 Rotella, The graphic contained in the "What is PC-11?" website (that you summarized) implies that CK-4 will retain all or most of the current recipe features.

 

[Ignacio]

This is a new oil standard/specification? Don't see anything NEPRT about that.

A new oil standard for medium and heavy duty engines....aka "diesels"? Sure......nothing pointless about that all.

 

[Redfish Hunter]

This is a new oil standard/specification? Don't see anything NEPRT about that.

A new oil standard for medium and heavy duty engines....aka "diesels"? Sure......nothing pointless about that all.

Well as you know, many folks use the Rotella oils in both conventional and synthetic in their FJRs. This makes the topic relevant to FJRs.

I am glad to have this information about the Rotella oil because I run the T6 synthetic in my Duramax.

And not judging, recommending, or taunting... This has no effect whatsoever on the Yamalube that I buy by the case from my local dealer for both of the FJRs I maintain.

 

[Ignacio]

Well as you know, many folks use the Rotella oils in both conventional and synthetic in their FJRs.

Very aware! I use it or the T6 too.

For this purpose i would suggest NEPRT could be considered NEPCRT to add a "c" for cheapskate.

My observation over the years is some of the threads in this place (i.e. using diesel oils, convex/concave non OEM oil filters) become tempests in teacups where folks want to save a few bucks and hand-wring in excruciating detail over them. Which is fine... hand-wring all you want in this area!

But a discussion about a planned standard that may affect some folks on some oils?

Yeah....this thread is placed perfectly.

 

[bergmen]

Both the Shell Rotella T (conventional) and T6 (synthetic) oils are JASO-DH2 rated for motorcycles. Just watch to make sure this rating still exists after the PC-11 adjustments and we are good to go.

Dan

 

[N4HHE]

There is some stuff in there that implies the oils will contain friction modifiers. If so then that would be bad.

You do know there are friction modifiers which increase friction and friction modifiers which decrease?

For example: MTL (Manual Transmission Lubricant) and gear oils for differentials. Many MTLs have friction modifiers for increasing the friction between bronze synchro rings and steel. One has to carefully select the proper product for differentials with LSD. The wrong choice will lockup too easily, or not easily enough.