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#4467566 - 07/22/17 10:37 PM Kubota ck4
spencerdiesel Offline


Registered: 05/07/17
Posts: 15
Loc: NC, USA
Hey all, I work at a Kubota dealer and can get oil for an ok price. We just got a bulk order in Thursday of the new ck4 rated kubota 15w40. We still have a few cases of the "old" cj4 oil and I was thinking about buying several cases.

I've heard a few people say that kubota uses valvoline oil, is this true?

If I end up getting the cj4 oil it will be used in my '92 6bt cummins. The kubota oil is dual rated for gasoline & diesel use, that is the main reason I was going to get the cj4 and not ck4.

All input is welcome, thanks

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#4467576 - 07/22/17 10:54 PM Re: Kubota ck4 [Re: spencerdiesel]
CT8 Offline


Registered: 10/09/14
Posts: 10979
Loc: Idaho
You work at a Kubota dealer ,find out your self my goodness.
_________________________
"Don't let your preconceived notions get in the way of facts."
Geoff Metcalf

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#4467577 - 07/22/17 10:56 PM Re: Kubota ck4 [Re: CT8]
car51 Online   content


Registered: 03/12/15
Posts: 10256
Loc: Southwest PA
Originally Posted By: CT8
You work at a Kubota dealer ,find out your self my goodness.


LOL! +10,000
_________________________
2009 Toyota Camry LE

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#4467606 - 07/22/17 11:29 PM Re: Kubota ck4 [Re: spencerdiesel]
Rand Offline


Registered: 08/20/03
Posts: 12643
Loc: NE,Ohio
Originally Posted By: spencerdiesel

If I end up getting the cj4 oil it will be used in my '92 6bt cummins.


Originally Posted By: car51
Originally Posted By: CT8
You work at a Kubota dealer ,find out your self my goodness.


LOL! +10,000



uh guys hes talking about using it in a Diesel Truck.

No reason it wouldn't work just fine. I think you could possibly find a better deal though.


Edited by wwillson (07/23/17 07:36 AM)
Edit Reason: remove language

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#4467644 - 07/23/17 02:01 AM Re: Kubota ck4 [Re: spencerdiesel]
mattwithcats Offline


Registered: 06/13/13
Posts: 1659
Loc: Virginia
CK4 has a little weaker add pack, to keep from poisoning the Diesel particulate filter and catalytic converter.

For that '92, I would grab as much of the CJ4 as I could, before it's gone....
_________________________
2009 Smart Pure
Pennzoil Platinum Euro 0W-40, Purolator Synthetic PSL 14610, 45 mpg...
185/55R15 General HP tires, "H" speed rated, 44 psi (300 kpa)

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#4467689 - 07/23/17 06:10 AM Re: Kubota ck4 [Re: spencerdiesel]
ArcticDriver Offline


Registered: 01/27/17
Posts: 1139
Loc: USA
I agree with Matt.

For older diesel engines the CJ-4 is a great product.
_________________________
Multiple Diesel and Gasoline vehicles

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#4467716 - 07/23/17 07:04 AM Re: Kubota ck4 [Re: Rand]
car51 Online   content


Registered: 03/12/15
Posts: 10256
Loc: Southwest PA
Originally Posted By: Rand
Originally Posted By: spencerdiesel

If I end up getting the cj4 oil it will be used in my '92 6bt cummins.


Originally Posted By: car51
Originally Posted By: CT8
You work at a Kubota dealer ,find out your self my goodness.


LOL! +10,000



uh guys hes talking about using it in a Diesel Truck.

No reason it wouldn't work just fine. I think you could possibly find a better deal though.



Obviously aside from your snide remark to CT8 and myself the gentleman can use it in his Diesel application.

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#4467748 - 07/23/17 07:58 AM Re: Kubota ck4 [Re: car51]
ArcticDriver Offline


Registered: 01/27/17
Posts: 1139
Loc: USA


Originally Posted By: car51
Originally Posted By: CT8
You work at a Kubota dealer ,find out your self my goodness.


LOL! +10,000


The poster asked a good question in a respectful manner about a valid topic...CK-4 backward compatible oils in older diesels measuring up to CJ-4.
Many of us who own older diesel trucks, tractors and cars have asked this same question.




_________________________
Multiple Diesel and Gasoline vehicles

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#4467761 - 07/23/17 08:15 AM Re: Kubota ck4 [Re: spencerdiesel]
dlundblad Offline


Registered: 09/30/13
Posts: 10036
Loc: Indiana
What are you paying per quart? There's no reason it wouldn't work honestly.

There should be plenty of CJ-4 oils on the market yet though. Delo and Delvac to name a few? Not sure on Valvoline.
_________________________
03 Jeep WJ 4.0 199k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 177k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 145k Rotella T5 10w30 Fram TG3980


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#4467764 - 07/23/17 08:20 AM Re: Kubota ck4 [Re: dlundblad]
car51 Online   content


Registered: 03/12/15
Posts: 10256
Loc: Southwest PA
Originally Posted By: dlundblad
What are you paying per quart? There's no reason it wouldn't work honestly.

There should be plenty of CJ-4 oils on the market yet though. Delo and Delvac to name a few? Not sure on Valvoline.


Yep, I was at Wal Mart this morning near gf's house and then had older blue jug DELO 15w40 and 10w30 SM and DELO 5w40 SM. Even Super Tech is CH/SM rated wink
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2009 Toyota Camry LE

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#4467799 - 07/23/17 08:52 AM Re: Kubota ck4 [Re: spencerdiesel]
ArcticDriver Offline


Registered: 01/27/17
Posts: 1139
Loc: USA
OP,

I have found various forums that state Valvoline supplies Kubota motor oils.

Unfortunately, none provided any supporting documentation but its a beginning point to research.
_________________________
Multiple Diesel and Gasoline vehicles

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#4467849 - 07/23/17 10:01 AM Re: Kubota ck4 [Re: car51]
CT8 Offline


Registered: 10/09/14
Posts: 10979
Loc: Idaho
Originally Posted By: car51
Originally Posted By: Rand
Originally Posted By: spencerdiesel

If I end up getting the cj4 oil it will be used in my '92 6bt cummins.


Originally Posted By: car51
Originally Posted By: CT8
You work at a Kubota dealer ,find out your self my goodness.


LOL! +10,000



uh guys hes talking about using it in a Diesel Truck.

No reason it wouldn't work just fine. I think you could possibly find a better deal though.



Obviously aside from your snide remark to CT8 and myself the gentleman can use it in his Diesel application.
It was not snide working a the dealer a phpne call to the proper erepresentative would get proper information first hand not I heard that bla,bla,bla! I worked at a dealer and a phone call would get the proper information or an engineer when there was a seemingly insurmontible problem etc.
_________________________
"Don't let your preconceived notions get in the way of facts."
Geoff Metcalf

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#4468112 - 07/23/17 03:18 PM Re: Kubota ck4 [Re: ArcticDriver]
TiredTrucker Offline


Registered: 01/04/08
Posts: 3230
Loc: Central Iowa
Originally Posted By: ArcticDriver
I agree with Matt.

For older diesel engines the CJ-4 is a great product.


Yeah, suppose it is. If the price point is good also. But I have been using CK-4 rated oil in a Detroit 12.7L pre-egr engine this year and it is doing just fine also. On it's third load of CK-4 oil in the engine and will get changed in a couple of weeks.
_________________________
Freedom is not about having the choice to do what you want, but the choice to do what you ought.

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#4468131 - 07/23/17 03:53 PM Re: Kubota ck4 [Re: spencerdiesel]
bullwinkle Offline


Registered: 10/09/04
Posts: 7671
Loc: Cincinnati, OH, USA
Oh boy! 5 seconds on Google! wink
http://www.kubota.com/assets/safety/pdf/msds/70000-10033%20KUBOTA%20ENGINE%20OIL%2015W40%201_325%20GA%20KU10033%20United%20States%20(GHS)%20-%20English.pdf
_________________________
06 Ram 3500 CTD 4X4(FG Venturi), 93 GMC C3500 6.2, 89 F-450 7.3, 98 XJ 4.0(XG8A), 05 xB(XG3600), 15 Transit 3.7, 03 Merc Grand Marquis 4.6 2V(XG2)

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#4468294 - 07/23/17 06:58 PM Re: Kubota ck4 [Re: TiredTrucker]
ArcticDriver Offline


Registered: 01/27/17
Posts: 1139
Loc: USA
Originally Posted By: TiredTrucker
Originally Posted By: ArcticDriver
I agree with Matt.

For older diesel engines the CJ-4 is a great product.


Yeah, suppose it is. If the price point is good also. But I have been using CK-4 rated oil in a Detroit 12.7L pre-egr engine this year and it is doing just fine also. On it's third load of CK-4 oil in the engine and will get changed in a couple of weeks.


It will be great to see the UOAs from your first 2 oil changes that are doing fine.

I am sure many people will have similar experience but the fact remains the API CK-4 was a response to the needs of newer diesels and not as an intentional improvement for older diesels. The end goal was not, "Listen guys, we need to figure out a way to improve lubrication of CJ-4 for older vehicles in an effort to keep them in service".
It was, "Listen guys, we need to figure out a way to make engine oil compatible with newer trucks and equipment and make it quit destroying newer vehicle emission equipment like CJ-4 is currently doing".

OFcourse, we all will be saying, "Yep, have run CK-4 in my older diesel engines and they haven't blown up" as CJ-4 stocks continue to be depleted but I don't see a reason to switch if I can get ahold of CJ-4 at an equal or lesser price since its been doing great in my diesel equipment and on-road vehicles for many years.

Why does CK-4 provide such better protection? What is this new chemistry promising 50% better wear protection in some instances? Maybe it does what they say but why don't they say how? Why can't we see the reason for this improved lubrication on a VOA or UOA? Its not an increase in traditional additives such as Phosphorus, Zinc, Moly.

That is a question I am hoping someone will answer here on BITOG.

Thanks.
_________________________
Multiple Diesel and Gasoline vehicles

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