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Oil question for a 2018 6.7 Powerstroke #4785704 06/13/18 10:05 AM
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Dfinkler Offline OP
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My mechanic is telling that he wants me to use schaeffer 15w/40. What do you recommend for a 2018 F250 Powerstroke? I live in southern Wisconsin.

Re: Oil question for a 2018 6.7 Powerstroke [Re: Dfinkler] #4785709 06/13/18 10:09 AM
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JohnnyJohnson Online Content
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Yah I'll bet he does what's he going to charge you for it?


2004 Corolla 136159
Out: EDGE EP 5W-30 Bosch 3311 7156 Miles
In: Havoline Pro DS 10w-30 Purolator PureOne 3-14-19 129693
2006 Duramax 76552
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73705 4-22-18
Re: Oil question for a 2018 6.7 Powerstroke [Re: Dfinkler] #4785720 06/13/18 10:17 AM
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BrocLuno Offline
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Schaefers is good oil. Mail order it and carry it in. See what he says when you supply the oil laugh


Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.
Re: Oil question for a 2018 6.7 Powerstroke [Re: Dfinkler] #4785727 06/13/18 10:21 AM
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Cedarshark Offline
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Difficult to answer unless you provide more info. We know you need cold starting capability. How much do you drive and tow?


F-250 PS
HOnda CRV
FOrd 1710 Diesel Tractor
30 chainsaws
Kawasaki mule
Re: Oil question for a 2018 6.7 Powerstroke [Re: Dfinkler] #4785785 06/13/18 11:26 AM
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umungus1122 Offline
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What does it spec? Do you have an auxiliary oil cooler? How much do you tow?


'95 Chevy 1/2t 305 208k -NexGen Maxlife 5w-30, Wix filter
'04 Crown Vic 95k
Re: Oil question for a 2018 6.7 Powerstroke [Re: Dfinkler] #4785789 06/13/18 11:28 AM
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Donald Online Content
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I would run a 5W40 synthetic that is Ford approved. You will need to check the Ford document on oils approved for the Ford Powerstroke (this is all about CK-4 oil).

Rotella T6 5W40 in the containers that pass the Ford spec would good.

Delo 5W40 is also good. I see a lot of that oil that is CJ-4 on shelves at Walmart. Stock up on some of that. The CJ-4 passes the Ford spec. But if its CK-4 then you need to check to see if it passes the Ford spec.




Last edited by Donald; 06/13/18 11:32 AM.

2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: Oil question for a 2018 6.7 Powerstroke [Re: Dfinkler] #4785814 06/13/18 11:48 AM
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Danno Online Content
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Yes, make sure it has the Ford spec WSS-M2C171-F1, a lot of CK-4 oils do not meet the Ford spec.
Given you are in Wisconsin, I would look at a 5W-40 weight.

https://www.fcsdchemicalsandlubricants.c...20Statement.pdf
https://www.fcsdchemicalsandlubricants.com/main/additionalinfo/dieseloilsWSSM2C171F1.pdf



Last edited by Danno; 06/13/18 11:50 AM.

2019 Jeep Grand Cherokee Summit 5.7L Hemi
2019 RAV4 Limited Hybrid
2016 Sorento SX V6 AWD
2010 Mazda 3 2.0L
Re: Oil question for a 2018 6.7 Powerstroke [Re: Dfinkler] #4785875 06/13/18 12:56 PM
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CT8 Online Content
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Read the owners manual and use an oil with the specs recommended by Ford.Buy an oil from any of the major companies.


2015 F150 2.7
2018 F350 6.2
Re: Oil question for a 2018 6.7 Powerstroke [Re: Dfinkler] #4785959 06/13/18 02:58 PM
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Zee09 Offline
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You really don't need your mechanic to change your oil.
That said I just got out from under my SUV now and changed it so I
understand.......


Ford gives big deal coupons on new trucks and you couldn't even buy the oil for what they do it for. They used to take 13.5 quarts. Don't know what your new one takes.
But an oil change from an independent could be really expensive.


"If I walked on water, they'd say I couldn't swim."
Re: Oil question for a 2018 6.7 Powerstroke [Re: Dfinkler] #4785987 06/13/18 03:41 PM
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Langanobob Offline
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I suggest asking Schaeffers and getting their recommendation. We need to be kind to Schaeffers around here, the Bob (RIP) in Bobistheoilguy was a Schaeffers rep.

Re: Oil question for a 2018 6.7 Powerstroke [Re: Dfinkler] #4786043 06/13/18 04:56 PM
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Buzzinhalfdozen Offline
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Unless you use the truck for towing and by towing I mean more than on the weekends you don't need a 15w-40 or 5w-40. If you look at previous threads there are plenty of powerstrokes running a 10w-30. 10w-30 as far as I know is factory fill. I've read alot of threads where 5w-40 shears down to a 30 anyway while the 10w-30 stays in grade. No need for expensive synthetics if you're going to change oil according to the owners manual and not push gvwr.

My dad just picked up a new 2018 F-250 I put Rotella T5 10w-30 in it for him at 4400 miles. He tows 15k on the weekends. Will be keeping a UOA record on this truck as well. By the way there are quite a few c&p of filters as well, take a look. I know the baldwin b7379 filter is wire backed synthetic as that's what I put on.


1999 Jeep Cherokee sport 4.0L
2015 Jeep Cherokee 3.2
2015 Ford F150 5.0
Re: Oil question for a 2018 6.7 Powerstroke [Re: Buzzinhalfdozen] #4786072 06/13/18 05:31 PM
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Zee09 Offline
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Originally Posted By: Buzzinhalfdozen
Unless you use the truck for towing and by towing I mean more than on the weekends you don't need a 15w-40 or 5w-40. If you look at previous threads there are plenty of powerstrokes running a 10w-30. 10w-30 as far as I know is factory fill. I've read alot of threads where 5w-40 shears down to a 30 anyway while the 10w-30 stays in grade. No need for expensive synthetics if you're going to change oil according to the owners manual and not push gvwr.

My dad just picked up a new 2018 F-250 I put Rotella T5 10w-30 in it for him at 4400 miles. He tows 15k on the weekends. Will be keeping a UOA record on this truck as well. By the way there are quite a few c&p of filters as well, take a look. I know the baldwin b7379 filter is wire backed synthetic as that's what I put on.


Did he wait the 1000 miles before he towed?
That was tough on me, the wait smile


"If I walked on water, they'd say I couldn't swim."
Re: Oil question for a 2018 6.7 Powerstroke [Re: Zee09] #4786182 06/13/18 07:46 PM
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Buzzinhalfdozen Offline
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Yes he did, I think a vacation was taken shortly after purchase and that was about 1500 miles.


1999 Jeep Cherokee sport 4.0L
2015 Jeep Cherokee 3.2
2015 Ford F150 5.0
Re: Oil question for a 2018 6.7 Powerstroke [Re: Dfinkler] #4786452 06/14/18 07:33 AM
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BoiseRob Offline
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Schaeffer's Supreme 9000 series is still CJ4. My Jeep GC Ecodiesel uses the S-9000 5w40 and my LBZ Duramax uses the S-9012 10w30. Great oil at a reasonable price...

FYI... The Duramax pulls our 10K# TT throughout the Idaho Rockies..


2007 Chevrolet Silverado 2500HD LBZ Duramax
2016 Jeep Grand Cherokee Ecodiesel
Re: Oil question for a 2018 6.7 Powerstroke [Re: Dfinkler] #4786553 06/14/18 09:43 AM
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beanoil Offline
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2016 PSD owner here.
Schaeffer is a fine oil no doubt. So is Valvoline Premium Blue and Rotella. All of those vendors 10w30 are on the list.
I'm in the camp of a 10 w being good to 20 degrees F, so if you get colder than that in Wisconsin, consider a 5w40. Your truck going to a cold climate may have come with a block heater. If so, I would stick with the 10w30 year round. Seriously, you'll find the 6.7 will start and run in any temperature you are brave enough to walk out into unassisted anyway.
I'm running Delo 15w30 in mine, but it gets stored along with the camper from October through March, so no cold starts for me.

Last edited by beanoil; 06/14/18 09:43 AM.
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