900k mile on orginal CP4
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From: Western NY
I go out to when the truck tells me when to change the oil, and like I've said that may change moving forward, and change my fuel filter set just before the 22.5k mile max interval set by Ford. The primary filter always comes out a lighter brown color and never black, which would be caused by pieces of tar formed by alphaltenes when fuel is heated under the high pressures of today's common rail engines which can clog fuel filters.
I think this makes a case that CP4s can potentially last a lot longer than thought before with regular use of a lubricity adding additive as well as good maintenance practices... great video.
Lead Driver
Joined: May 2021
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From: Uh oh, CA
Let's hope all our pumps make it this long! I still do oil every 5k and fuel filters every 15k, but this does make me think about going out a little farther with the oil. I don't think I will, but maybe eventually... I will keep using my additives though (EDT + FBC) and using stations that move a lot of fuel.
Lead Driver
Joined: May 2021
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From: Uh oh, CA
I missed that. I guess that is why he was eventually going 15k, and finally as much as 27k on an oil change. However, this shouldn't really affect the longevity of the CP4 though, huh?
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Lead Driver
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It would have been nice if he mentioned what oil and what fuel additive he had been using. I imagine any of the additives that are intended to improve lubricity would be beneficial.
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In the UK/EU where this pump is used the most, the fuel has higher lubricity and they rarely if ever have failures of the CP4. This pretty much proves that it is the fuel causing the failures and why I have been religious about using EDT from day 1. Doesn't mean I will not install the DPK, still want that protection, but this doesn't really surprise me. There are quite a few of these trucks on the road with that kind of miles. There is the million mile DPF one that Ford wanted the DPF to examine and traded the owner a new replacement for it. Would be funny if Ford saw this video and wanted that pump.
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From: Western NY
He said he ran the oil out that long because he knew the engine already had problems. I also think this is a testament to how advanced modern day HDEOs are.
FTE Legend
Joined: Mar 2017
Posts: 31,878
Likes: 9,171
From: Western NY
In the UK/EU where this pump is used the most, the fuel has higher lubricity and they rarely if ever have failures of the CP4. This pretty much proves that it is the fuel causing the failures and why I have been religious about using EDT from day 1. Doesn't mean I will not install the DPK, still want that protection, but this doesn't really surprise me. There are quite a few of these trucks on the road with that kind of miles. There is the million mile DPF one that Ford wanted the DPF to examine and traded the owner a new replacement for it. Would be funny if Ford saw this video and wanted that pump.
Lead Driver
Joined: Dec 2020
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No but that may have helped the engine reach those miles, utilizing a bypass oil filter system... I just mentioned that because the reason they pulled the CP4 was because the engine checked out at almost 900k miles...
He said he ran the oil out that long because he knew the engine already had problems. I also think this is a testament to how advanced modern day HDEOs are.
He said he ran the oil out that long because he knew the engine already had problems. I also think this is a testament to how advanced modern day HDEOs are.
FTE Legend
Joined: Mar 2017
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From: Western NY
Hmmm... I wonder if was the K100 sauce?
Last edited by Overkill2; Dec 27, 2024 at 10:34 AM. Reason: add to post
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His engine probably started losing compression from worn out rings. Thats the only thing I can think of that would kill it after so many miles. I would have loved to take it apart and plastiguage the bearings.