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CJ4 oil still available? #5181035 08/07/19 09:57 AM
Joined: Sep 2011
Posts: 213
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Fraser434 Offline OP
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Gone are the days you could find diesel oil at any shop and didn't have to be a chemist to understand if it was safe for your engine.

I'm not convinced CK-4/SN oils are reliable for our diesel engines, I see CK-4 formulations of the same oil (ie Rotella) with less of all additive levels and now no Moly.

There's a few oils I see that are safe now:
Motocraft diesel oils I think are safe, Ford seems to agree with my assumptions, even with them carrying CK-4 Ford is adamant about 1000ppm phos.
Shaeffer 9000 5W-40 is still CJ4 (last I checked)
Harvest King, still CJ4? (made by Warren oil?)
Lucas Magnum CJ4 (and CI4)
Delvac MX (but this is Ci4... may have to look closer into this one, this oil isn't on many shelves though)

Any others out there that could be suggested?

Last edited by Fraser434; 08/07/19 09:58 AM.
Re: CJ4 oil still available? [Re: Fraser434] #5181075 08/07/19 10:42 AM
Joined: Mar 2015
Posts: 14,627
53' Stude Online Content
Online Content
Joined: Mar 2015
Posts: 14,627
Originally Posted by Fraser434
Gone are the days you could find diesel oil at any shop and didn't have to be a chemist to understand if it was safe for your engine.

I'm not convinced CK-4/SN oils are reliable for our diesel engines, I see CK-4 formulations of the same oil (ie Rotella) with less of all additive levels and now no Moly.

There's a few oils I see that are safe now:
Motocraft diesel oils I think are safe, Ford seems to agree with my assumptions, even with them carrying CK-4 Ford is adamant about 1000ppm phos.
Shaeffer 9000 5W-40 is still CJ4 (last I checked)
Harvest King, still CJ4? (made by Warren oil?)
Lucas Magnum CJ4 (and CI4)
Delvac MX (but this is Ci4... may have to look closer into this one, this oil isn't on many shelves though)

Any others out there that could be suggested?


I highly DOUBT CK4 diesel engine oils are weak or "not good"

If that was the case member dustyroads wouldn't be using DELO 10W30

ANYWAYS: I got tons of DELO XLE 10W30 dirt cheap at autozone as well as 9 gallons of maxlife 15w40 under $8/gallon at Wal Mart that's CJ4


2009 Toyota Camry LE

161,669 miles

Valvoline Maxlife Synthetic 5w20 Dexos 1 Gen 2 SN+
Fram tough guard 4386 filter
Re: CJ4 oil still available? [Re: Fraser434] #5181091 08/07/19 11:02 AM
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wensteph Offline
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I believe Rotella T5 is CK-4 but not CK-4/SN. My last UOA on this at 5K still showed 63ppm Moly.
Schaeffer 700 is CK-4 but not CK-4/SN

Re: CJ4 oil still available? [Re: Fraser434] #5181129 08/07/19 12:10 PM
Joined: Dec 2017
Posts: 5,861
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Snagglefoot Online Content
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Here you go.

CK-4.jpg

If you want the job done right......do it yourself.
Re: CJ4 oil still available? [Re: Fraser434] #5181159 08/07/19 12:45 PM
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Posts: 213
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Fraser434 Offline OP
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Thank you for your contribution.

Make all the memes you want. What does Ford Motor Company know.
https://www.flsheriffs.org/uploads/docs/January_2017_Updated_CK-4_Position_Statement.pdf

I know the intent of Ford's statement, that they don't approve having CK-4/SN oil with 800ppm max phos, and are concerned with the CK-4/SN deception. still the options are becoming very limited and expensive for 1200+ ppm Phos. oil.

Re: CJ4 oil still available? [Re: Fraser434] #5181168 08/07/19 12:54 PM
Joined: Mar 2015
Posts: 14,627
53' Stude Online Content
Online Content
Joined: Mar 2015
Posts: 14,627
Originally Posted by Fraser434
Thank you for your contribution.

Make all the memes you want. What does Ford Motor Company know.
https://www.flsheriffs.org/uploads/docs/January_2017_Updated_CK-4_Position_Statement.pdf

I know the intent of Ford's statement, that they don't approve having CK-4/SN oil with 800ppm max phos, and are concerned with the CK-4/SN deception. still the options are becoming very limited and expensive for 1200+ ppm Phos. oil.






Since you already mentioned Rural King; mine has a lot of CJ4 10W30 all fleet HDEO.

I'm still curious why you think CK4 oils aren't reliable for diesels. The Valvoline Maxlife I have has moly and boron also


2009 Toyota Camry LE

161,669 miles

Valvoline Maxlife Synthetic 5w20 Dexos 1 Gen 2 SN+
Fram tough guard 4386 filter
Re: CJ4 oil still available? [Re: Fraser434] #5181198 08/07/19 01:42 PM
Joined: Apr 2017
Posts: 3,228
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hallstevenson Offline
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Originally Posted by Fraser434
I'm not convinced CK-4/SN oils are reliable for our diesel engines
Why aren't you ?

Originally Posted by Fraser434
I see CK-4 formulations of the same oil (ie Rotella) with less of all additive levels and now no Moly.
It's entirely possible - or likely - that the additive levels of the past were more than necessary. Maybe a LOT more than necessary. It sounds like multiple oil formulators/blenders have reduced additive levels similarly and came to the same conclusion. They aren't going to do so just because the other guys did unless it's safe to do so.

Re: CJ4 oil still available? [Re: Fraser434] #5181202 08/07/19 01:48 PM
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Posts: 337
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BlakeB Offline
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I reached out to a Chevron rep, this was their response:
[Linked Image]

Re: CJ4 oil still available? [Re: Fraser434] #5181206 08/07/19 01:55 PM
Joined: Feb 2009
Posts: 2,315
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krismoriah72 Offline
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Lubriguard 15w40 at Autozone CJ-4/SM

https://www.autozone.com/motor-oil-...stp-15w40-diesel-engine-oil-1gal/54319_0

*They call it STP.

Re: CJ4 oil still available? [Re: Fraser434] #5181275 08/07/19 03:46 PM
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SR5 Offline
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Come to Australia, I still see this stuff on sale everywhere

Valvoline Super Diesel 15W40 mineral oil
API CH-4/SJ, ACEA A3/B3

Cheap and old school


---------------------------------------------------------------------------------
Valvoline DuraBlend 10W40 SN & A3/B4 semi-synthetic + Valvoline V06 synblend media filter
Re: CJ4 oil still available? [Re: 53' Stude] #5181277 08/07/19 03:47 PM
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dustyroads Offline
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Originally Posted by 53' Stude


I highly DOUBT CK4 diesel engine oils are weak or "not good"

If that was the case member dustyroads wouldn't be using DELO 10W30


You're correct Adam. I've put Delo XLE (a "low phosphorus" CK-4) to the test in real world use and it has worked marvelously. However it's fruitless to say anymore. I've given up on trying to get people to understand the benefits of the new oils. Then again, not many people use their diesel vehicles in a way that pushes the oil and it doesn't matter to them. For me, CK-4 has been a true benefit to my business.


2013 F150 XLT 5.0 4X4 122k miles
Re: CJ4 oil still available? [Re: Fraser434] #5181280 08/07/19 03:56 PM
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2015_PSD Offline
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Too bad you are not close to Houston, I still have gallons of synthetic CJ-4 (Mobil Delvac and Chevron Delo 5W-40), I could sell to you.


2019 o)|||||(o Rubicon Wrangler Unlimited 3.6L V6 [Castrol Edge + Mahle]
2018 Mercedes Benz C300 2.0L Turbo [Pennzoil Platinum + Mann filter]
Re: CJ4 oil still available? [Re: Fraser434] #5181281 08/07/19 03:59 PM
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mbacfp Offline
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Would take you up on that 2015_PSD if closer as well...now using Valvoline CK-4 5W-40 as ok per Ford's list.


2014 F-550 PSD..........M1 Delvac ESP 5w-40 + OEM
2018 Dodge Charger SRT Hellcat
2012 Toyota Sienna LTD 3.5L V6
2003 Dodge Durango R/T 4x4 5.9L V8
Re: CJ4 oil still available? [Re: Fraser434] #5181383 08/07/19 05:55 PM
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BigD1 Offline
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Last time I looked at Rural King all fleet it was still CJ4. Not sure if it's Warren Performance Products or Warren Oil Company Dunn, NC.


1992 Toyota Pickup--AmazonBasics Conventional--10W-30--Toyota 90915YZZD1
Re: CJ4 oil still available? [Re: Fraser434] #5181450 08/07/19 06:58 PM
Joined: Dec 2017
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Snagglefoot Online Content
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Originally Posted by Fraser434
Thank you for your contribution.

Make all the memes you want. What does Ford Motor Company know.
https://www.flsheriffs.org/uploads/docs/January_2017_Updated_CK-4_Position_Statement.pdf

I know the intent of Ford's statement, that they don't approve having CK-4/SN oil with 800ppm max phos, and are concerned with the CK-4/SN deception. still the options are becoming very limited and expensive for 1200+ ppm Phos. oil.



Here you go. Read the label on the back. It’s CK-4 and meets Ford WSS-M2C171-F1. smile

CCF649A6-A8AF-44AD-B034-73AE851BFE40.jpeg53D3D574-421D-4307-BB38-162E5AAC052E.jpeg
Last edited by Snagglefoot; 08/07/19 07:02 PM.

If you want the job done right......do it yourself.
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