CK4 Spec oil ok to use in a 2017 Cummins? - Dodge Cummins Diesel Forum
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post #1 of 9 (permalink) Old 06-17-2017, 02:37 PM Thread Starter
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CK4 Spec oil ok to use in a 2017 Cummins?

Just ordered some Valvoline Premium Blue oil and it is now CK4 Spec. Is this oil ok to use on my 2017 Cummins or is the old Spec better?

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post #2 of 9 (permalink) Old 06-17-2017, 04:42 PM
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All newer specs include the previous specs within them, so it should be fine. That's all there is before long so we're in the same boat! Pour it in and hammer down.

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post #3 of 9 (permalink) Old 06-17-2017, 05:02 PM
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Originally Posted by Flash1034 View Post
Just ordered some Valvoline Premium Blue oil and it is now CK4 Spec. Is this oil ok to use on my 2017 Cummins or is the old Spec better?

Thanks,
I just got mine, and they aren't calling for the new oil yet, but use what you have.

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post #4 of 9 (permalink) Old 06-17-2017, 09:07 PM
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I've read as long as it's ces 20081 or the new spec 20086 you are good to go. I have some ck-4 rt6 in mine right now.
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post #5 of 9 (permalink) Old 06-17-2017, 11:38 PM
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Been running it now for a while, can tell no difference.

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post #6 of 9 (permalink) Old 06-18-2017, 12:22 AM
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There was some buzz around the new CK4 spec and how it was inferior to the outgoing CJ4. Have yet to see any proof that it is inferior. It appears that CES 20086 is on all the CK4 and the old 20081 was on the CJ4. Updated and fully backwards compatible.

I have some 10w30 semi synthetic PetroCanada CK4 oil ready for my first change. 20086/CK4.

It appears that this new CK4 spec and Ford were having issues. Apparently the Powerstroke requires a different oil now. Glad I never went that route.
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post #7 of 9 (permalink) Old 06-18-2017, 01:03 AM Thread Starter
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There was some buzz around the new CK4 spec and how it was inferior to the outgoing CJ4. Have yet to see any proof that it is inferior. It appears that CES 20086 is on all the CK4 and the old 20081 was on the CJ4. Updated and fully backwards compatible.

I have some 10w30 semi synthetic PetroCanada CK4 oil ready for my first change. 20086/CK4.

It appears that this new CK4 spec and Ford were having issues. Apparently the Powerstroke requires a different oil now. Glad I never went that route.
That's kinda my concern, if the Ford can't run it, there must be some difference in the oil....

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post #8 of 9 (permalink) Old 06-18-2017, 06:10 AM
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Here is a video series by Chevron explaining the new standard and the changes for FA-4 and CK-4 oils

PC-11 Explained | Delo

Enjoy
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post #9 of 9 (permalink) Old 06-18-2017, 01:34 PM
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I am less concerned about the CK4. Our engines have massive bearing surfaces and have proved to be easy on oil. Even fully emissions compliant and allowing 24k km oil change indexes. The Powerstroke has, from what I read smaller components, smaller bearing surfaces and factory set oil change indexes around that 8-10k km mark. In a modern diesel is that the best they can do?
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