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The new ck4 oil and adding Schaeffers Molly oil treatment any downsides #5428998 05/14/20 10:28 AM
Joined: Aug 2009
Posts: 129
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BigRich954 Offline OP
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Posts: 129
The new oils that I don’t have Molly zinc or phosphorus is there any downside Adding a Molly treatment to it.

Because they don’t use zinc phosphorus remotely what additives do they use for high pressure protection?

How do you do a oil test to see how much of the additive is left or working

Re: The new ck4 oil and adding Schaeffers Molly oil treatment any downsides [Re: BigRich954] #5429001 05/14/20 10:38 AM
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LubricatusObsess Offline
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Of course the OEM's won't tell you. The tribologists on here can tell you which elements that show up on spectrometry are the antiwear elements. I don't think the zinc and phos went to zero - they are just regulated low enough not to poison the DPF and SCR.

But I do know when the API CK-4 standard came out to restrict harmful emissions control elements, the first oils had less antiwear capability than the previous API CJ oils - according to Ford, who published about this and required oils that met their antiwear standard
https://parts.ford.com/content/dam/..._Motor_Oils_Meeting_Ford_WSSM2c171F1.pdf

Some of the OEM's reformulated their CK-4 oils and passed the Ford spec. They are on the list above. Shell Rotella was one such supplier. The history is out there - google it.


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Re: The new ck4 oil and adding Schaeffers Molly oil treatment any downsides [Re: BigRich954] #5429006 05/14/20 10:42 AM
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kschachn Offline
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Originally Posted by BigRich954
The new oils that I don’t have Molly zinc or phosphorus is there any downside Adding a Molly treatment to it.

Because they don’t use zinc phosphorus remotely what additives do they use for high pressure protection?

How do you do a oil test to see how much of the additive is left or working

What does "high pressure protection" mean in regards to a motor oil?


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Re: The new ck4 oil and adding Schaeffers Molly oil treatment any downsides [Re: BigRich954] #5429805 05/15/20 11:08 AM
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Duffyjr Offline
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Isn't ZDDP activated by pressure or load?


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