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Source for CJ-4 diesel oil………

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Lars(wi) View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Lars(wi) Quote  Post ReplyReply Direct Link To This Post Topic: Source for CJ-4 diesel oil………
    Posted: 06 Nov 2024 at 10:29am
Other than going to a farm implement stealership, I’m trying to get some 30w CJ-4 engine oil. Recently acquired a 1991 F-350 w/7.3 IHC engine. Ford and Navistar still call for straight 30 weight for temps above 0* F. for this particular engine. We don’t have any co-ops, or Farm & Ranch supply stores that stock it. No Case/IH dealerships that I know of, to get IH #1 oil.
I tried to follow the science, but it was not there. I then followed the money, and that’s where I found the science.
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Hurst View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Hurst Quote  Post ReplyReply Direct Link To This Post Posted: 06 Nov 2024 at 10:44am
Rotella T1 is still available at Walmart last time I checked.  Rural King carries Delvac 1630 which is a diesel 30wt engine oil.  They are only rated CF-4, but is a 30wt diesel engine oil.  I don't recall CJ-4 ever being available in a straight weight oil (it may not be possible to meet the specs without being a multi-weight oil).

Best,

Hurst
1979 Allis Chalmers 7000
5800 Hours
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Post Options Post Options   Thanks (0) Thanks(0)   Quote PaulB Quote  Post ReplyReply Direct Link To This Post Posted: 06 Nov 2024 at 11:35am
Read the label for API codes:
CJ-4: C=Compression ignition  J=Upgrade usage   4= Specific upgrade date usage 
If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY
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steve(ill) View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 06 Nov 2024 at 1:44pm
going to be hard to find a CJ4 oil in straight 30wt as Hurst said..... Lots of options if you go to 10- 30 or 15- 40 .........I know what your book says, but is 35 years old.... Maybe UPGRADE to a 15w-40  ??

Edited by steve(ill) - 06 Nov 2024 at 1:44pm
Like them all, but love the "B"s.
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Lars(wi) View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Lars(wi) Quote  Post ReplyReply Direct Link To This Post Posted: 06 Nov 2024 at 2:39pm
Originally posted by steve(ill) steve(ill) wrote:

going to be hard to find a CJ4 oil in straight 30wt as Hurst said..... Lots of options if you go to 10- 30 or 15- 40 .........I know what your book says, but is 35 years old.... Maybe UPGRADE to a 15w-40  ??

I could easily go with 15w40, according to the previous owner, he changed oil just a couple days before selling. Supposedly there is STP brand 15w40 in it right now. This truck will more than likely be in front of our 35ft travel trailer 80-90% of the time. As we are in west-central Texas, and very seldom do temperatures stay below 32* F for any extended time.
I tried to follow the science, but it was not there. I then followed the money, and that’s where I found the science.
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Ed (Ont) View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ed (Ont) Quote  Post ReplyReply Direct Link To This Post Posted: 06 Nov 2024 at 2:47pm
We serviced lots of those engines in our shop. International dealership. All went down the road with 15-40. Most in school bus application.

Edited by Ed (Ont) - 06 Nov 2024 at 2:48pm
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Alberta Phil View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Alberta Phil Quote  Post ReplyReply Direct Link To This Post Posted: 06 Nov 2024 at 4:27pm
I drive a 1992 F250 with 7.3 IDI engine and an ATS turbo system and all it's ever had is a 15-40 oil in the 20 years I've had it.  Never any problems and it's seen a lot of heavy hauling.


Edited by Alberta Phil - 07 Nov 2024 at 9:24am
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ekjdm14 Quote  Post ReplyReply Direct Link To This Post Posted: 07 Nov 2024 at 8:03am
Agree with all the above, multigrade can only ever be an upgrade in my opinion. Easier cold starting/better cold oil flow coupled with higher stability when the temperatures get up there.

If your hot oil pressure is good then I'd stay with 10 or 15w-30, I'd usually only go heavier if things are a bit tired &/or it's using a lot.

One area I'd be careful of in terms of "newer=better" thinking, is detergents.  If an engine's been run on straight mineral or semi-synth and low detergent levels then it is possible that crud has built up over the years that would be knocked loose by a high detergent content & cause issues with plugging oilways or getting into bearings.  Not based on any science, but my thinking is if it's always run non-detergent then don't start now. Fresh rebuilds are different, run a good synthetic high-detergent oil from the get go & it'll stay cleaner for longer but if it's "used to" dinosaurs then best not to introduce a variable.

FWIW I feel like a lot of the detergent additive packages in oil now are aimed at increasing the spill interval & not really needed if you stick to regular changes in the first place, but for a fresh engine they're not going to hurt much either.


Edited by ekjdm14 - 07 Nov 2024 at 8:05am
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SteveM C/IL View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SteveM C/IL Quote  Post ReplyReply Direct Link To This Post Posted: 07 Nov 2024 at 6:25pm
What uses non detergent oil in the past 30 years?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ekjdm14 Quote  Post ReplyReply Direct Link To This Post Posted: 08 Nov 2024 at 6:25am
Not sure what or if it's still even available, but my policy has always been to run the cheapest "known brand" (i.e. not just random ulong dingdong Amazon brand, usually use Mannol) but it's likely got some kind of detergent package I suppose anyway.  My thinking is that more expensive oils probably have more/better detergents. (The amount of sludge in some modern engines suggests cheaper oils don't have as much anyway)

Whether it's true or not, I just use cheap and change often. Works out OK as the used oil goes right in the fuel tank of our old diesels...
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Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 08 Nov 2024 at 8:35am
in the US , engine oils meet a "C" spec for diesel or a "S" spec for gasoline use..... You can buy the CHEAPEST ENGINE OIL that Wal Mart sells and IT WILL MEET THE API SPEC.... It might have a slightly DIFFERENT addative package than SHELL or MOBIL or a NAME BRAND... but it will be 100% ACCEPTABLE for any engine.. PER THE SPEC.

SAE sets the SPEC for the VISCOSITY of the oil...
--------------

The API oil standard 


Established by the American Petroleum Institute, this standard classifies the product according to several criteria: dispersive and detergent power, and protection against wear, oxidation, and corrosion.   
The standard consists of two letters: S for gasoline engines, or C for diesel engines. The second letter indicates the oil’s performance. The further along the alphabet the letter, the higher the quality of the oil. For example, an SH oil will have lower performance than an SN oil. 



Edited by steve(ill) - 08 Nov 2024 at 8:44am
Like them all, but love the "B"s.
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steve(ill) View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 08 Nov 2024 at 8:53am
Normally a "NEWER OIL" will be backward  Compatable...



Like them all, but love the "B"s.
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PaulB View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote PaulB Quote  Post ReplyReply Direct Link To This Post Posted: 08 Nov 2024 at 10:19am
Many newer oils are NOT backwards compatible. Take for instance the latest and greatest oils that have very low or no Zinc content, use then in your older engine without a roller camshaft and you'll soon be looking for another engine or a rebuild. 
If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY
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Post Options Post Options   Thanks (0) Thanks(0)   Quote HudCo Quote  Post ReplyReply Direct Link To This Post Posted: 08 Nov 2024 at 10:47am
rottello t4 15w-40 will work just fine  you probley will not find what you are looking for at the dealerships anyways  like paul b says  t4 still has about the most zinc  our shop uses shell or valvoline  we also use it in all our older gas engines and our gas tractors because of the higher zinc done us good for many years  
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Carl(NWWI) Quote  Post ReplyReply Direct Link To This Post Posted: 10 Nov 2024 at 9:20am
Where in Wisconsin are you? I’m a dealer for Viscosity oil company, who was the original engineer and oil producer for IH up until 2021. Have 30w on hand. I’m in Somerset.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Clayfoot Quote  Post ReplyReply Direct Link To This Post Posted: 10 Nov 2024 at 10:46am
Originally posted by Lars(wi) Lars(wi) wrote:

Other than going to a farm implement stealership, I’m trying to get some 30w CJ-4 engine oil. Recently acquired a 1991 F-350 w/7.3 IHC engine. Ford and Navistar still call for straight 30 weight for temps above 0* F. for this particular engine. We don’t have any co-ops, or Farm & Ranch supply stores that stock it. No Case/IH dealerships that I know of, to get IH #1 oil.


IH IDI, use 15-40 year round with some Lucas stabilizer in it and keep a gallon jug of top off in the truck. I've been running IDI's and wrenching in then for awhile. Rotella T4 has been known to burn a little faster in them, so I normally run Delvac. Rotella T6 is about the best all round diesel oil when considering the price point as a factor.

Most important thing with them is to keep the fuel system sealed up. I delete all of the "olive" seals in the fuel system. If you do that, replace the return line caps and o-rings with viton o-rings and are still having some air intrusion, go to a 1 piece fuel filter/separator and delete the filter head preheater while you're in there. Most don't work and are a common intrusion point. As for fuel parts, best bet is Justin Anderson/IDI Performance. We just lost Russ of Russ Repair here recently and IMHO, other than being a great guy, he was a bit better on the customer service side of things and a touch cheaper on rebuilt injectors without cutting any corners.

Edited by Clayfoot - 10 Nov 2024 at 10:49am
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Lars(wi) View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Lars(wi) Quote  Post ReplyReply Direct Link To This Post Posted: 10 Nov 2024 at 3:14pm
Actually moved to Texas in 2013, can’t locate any CaseIH dealerships near me.
Did pickup Chevron Delo 400 30w last week, now this morning saw at the Walmart in Gatesville TX, Mobil Delvac 1 ‘Extreme’ 15w40 Full Synthetic for $15.00 per gal. And Royal Purple 15w40 Full Synthetic for $30.00 per gallon.
Now I’m at a dilemma.
I tried to follow the science, but it was not there. I then followed the money, and that’s where I found the science.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Clayfoot Quote  Post ReplyReply Direct Link To This Post Posted: 10 Nov 2024 at 7:07pm
If you don't mind spending the $$, grab the royal purple. I always recommend getting a PSD oil filter as well so you get that extra quart of oil in there got the extra cooling/heat soak capacity. Easier to get ahold of to remove when you changed it too, not to mention is typically available on the shelf. Same threads on the filter as the IDI filter.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Carl(NWWI) Quote  Post ReplyReply Direct Link To This Post Posted: 10 Nov 2024 at 8:25pm
I would just use Rotella 10w30 then.
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