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2018 F250 Powerstroke 6.7 #4965574 12/30/18 07:45 PM
Joined: Jan 2017
Posts: 99
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Buzzinhalfdozen Offline OP
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Posts: 99
This is the second analysis 8550 miles on 10 quarts rotella t5 cj4 10w-30 and 3 quarts rotella t5 ck4 10w-30. Copper and silicon trending down. Iron is up but the miles are almost double the last interval and iron could still be a combination of break in and increased wear from towing 15k on weekends.

Delo 10w-30 cj4 went in.

IMG9569341.jpg

1999 Jeep Cherokee sport 4.0L
2015 Jeep Cherokee 3.2
2015 Ford F150 5.0
Re: 2018 F250 Powerstroke 6.7 [Re: Buzzinhalfdozen] #4965686 12/30/18 09:50 PM
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Posts: 3,398
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beanoil Offline
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Fuel at zero after 8500 miles? Did they test, because most 6.7 will show a few percent of fuel over an OCI.
10.5 still puts you in the 30 weight range, so it could be correct.
Nothing wrong with 30 weight and your use I can see.

Re: 2018 F250 Powerstroke 6.7 [Re: Buzzinhalfdozen] #4965814 12/31/18 12:26 AM
Joined: Aug 2006
Posts: 10,027
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Colt45ws Offline
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Looks real good. Iron will track with miles so dont be concerned. Keep rolling! You have a great engine there. How long are you planning on running this time around? I wouldnt hesitate 10-15k.


-Colton
2002 Ford Crown Vic PI 207k, Ex-Kootenai County, ID Unit #42
Down for engine swap
2003 Ford Crown Vic PI 86k
Pennzoil Conv HM 5W30, Fram XG2
Re: 2018 F250 Powerstroke 6.7 [Re: Buzzinhalfdozen] #4965859 12/31/18 06:40 AM
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Posts: 8,078
dnewton3 Offline
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Looks good, alright. Probably a tad bit of break-in was still occurring in this UOA.
Nothing but good fortune seems possible moving forward.
If the trends continue, 10-15k mile OCIs are certainly in the realm of reasonable.


The act of preventative maintenance, in and of itself, is FAR MORE important than brand/grade/base choices among lubes and filters.
- under maintaining something is akin to abuse/neglect; that can kill equipment by shortening the lifespan
- over maintaining something has never been proven to be anything but a waste of time and money
Re: 2018 F250 Powerstroke 6.7 [Re: Buzzinhalfdozen] #4965881 12/31/18 07:46 AM
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Buzzinhalfdozen Offline OP
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Beanoil I'll have to get back to you on fuel I don't know if they do or not for certain.

Will run this change to full olm interval. Olm seems to want to do 9-10k so this time it will.
Probably won't try extended drain while under warranty but it's nice to know it could go over a few miles and not have to worry.


1999 Jeep Cherokee sport 4.0L
2015 Jeep Cherokee 3.2
2015 Ford F150 5.0
Re: 2018 F250 Powerstroke 6.7 [Re: Buzzinhalfdozen] #4966286 12/31/18 05:10 PM
Joined: Feb 2016
Posts: 472
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claluja Offline
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Looks good. Fuel dilution is typically the limiting factor for OCIs on the 6.7. So if you ever consider extending an OCI past 7-9K, use a lab that uses gas chromotagraphy (GC) to measure fuel dilution so that get an actual fuel dilution measurement.


2014 F250 6.7L PSD
2006 Sequoia 4.7L
2005 E500 5.0L
2018 Jeep Rubicon, Pentastar 3.6L
Re: 2018 F250 Powerstroke 6.7 [Re: Buzzinhalfdozen] #4970410 01/05/19 11:20 AM
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sw99 Offline
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Looks great thanks for the post. I am thinking T5 CK4 10w30 year round for mine.




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