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CK-4 RT6: What have they done? #4403418
05/12/17 09:10 PM
05/12/17 09:10 PM
Joined: Oct 2010
Posts: 7,097
Michigan
A_Harman Offline OP
A_Harman  Offline OP
Joined: Oct 2010
Posts: 7,097
Michigan
I'll tell you what they've done. They've taken an oil I've run successfully for years, and turned it into some kind of a wimpy near-beer.

From Polaris Laboratories:
KV100: 14.6 cSt
TAN: 2.68
Silicon: 5 ppm
Sodium: 3
Potassium: 2
Titanium: 1
Boron: 186
Magnesium: 80
Calcium: 1978
Phosphorous: 944
Zinc: 1109

These are all the metals that were present. Where is Moly?
The zddp content has really dropped off.
Magnesium is almost gone, compared to the previous formulation.
This doesn't look like a long life oil anymore.

I think I need to start considering alternatives.




Last edited by A_Harman; 05/12/17 09:12 PM.

1985 Z51 Corvette track car
2002 Camaro Z28 LS1/6-speed
2001 Dodge Ram 2500 diesel
1972 GMC 1500 shortbed project truck
Re: CK-4 RT6: What have they done? [Re: A_Harman] #4403425
05/12/17 09:21 PM
05/12/17 09:21 PM
Joined: Aug 2008
Posts: 3,231
Where the wind comes sweepin'
Reddy45 Offline
Reddy45  Offline
Joined: Aug 2008
Posts: 3,231
Where the wind comes sweepin'
It's not surprising right? Environmentally friendly has somehow beat superior protection, and we have to live with the results of this policy.

Is the batch you test dual rated for gas engines and SN? Or still SM?

And is there a way you can change the title so it says "Roellta T6" instead of RT6? (for future search purposes -- we don't all know the same acronyms)

Re: CK-4 RT6: What have they done? [Re: A_Harman] #4403427
05/12/17 09:22 PM
05/12/17 09:22 PM
Joined: Nov 2009
Posts: 5,123
Houston, Texas
motor_oil_madman Offline
motor_oil_madman  Offline
Joined: Nov 2009
Posts: 5,123
Houston, Texas
I don't think rotella ever moly. Delo has moly. The boron makes up for the lack of zddp.


2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.

Re: CK-4 RT6: What have they done? [Re: A_Harman] #4403428
05/12/17 09:24 PM
05/12/17 09:24 PM
Joined: Oct 2004
Posts: 3,183
Midwest, Illinois
beanoil Offline
beanoil  Offline
Joined: Oct 2004
Posts: 3,183
Midwest, Illinois
Before anyone else parrots the nonsense...
"There are things that don't show up in an oil analysis."
I agree with A_Harman. CK-4's look weak, and whether or not things show in an analysis or not, what we have judged by for a long time is long gone.
I must have missed the "Save the DPF's" flyers somewhere....

Last edited by beanoil; 05/12/17 09:24 PM.

beanoil: Tough under heat, real dirty afterwards.
Re: CK-4 RT6: What have they done? [Re: beanoil] #4403430
05/12/17 09:26 PM
05/12/17 09:26 PM
Joined: Nov 2009
Posts: 5,123
Houston, Texas
motor_oil_madman Offline
motor_oil_madman  Offline
Joined: Nov 2009
Posts: 5,123
Houston, Texas
Originally Posted By: beanoil
Before anyone else parrots the nonsense...
"There are things that don't show up in an oil analysis."
I agree with A_Harman. CK-4's look weak, and whether or not things show in an analysis or not, what we have judged by for a long time is long gone.
I must have missed the "Save the DPF's" flyers somewhere....


So can you just spike the oil with a good zddp additive? Or is that not the same?


2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.

Re: CK-4 RT6: What have they done? [Re: A_Harman] #4403431
05/12/17 09:27 PM
05/12/17 09:27 PM
Joined: Nov 2009
Posts: 5,123
Houston, Texas
motor_oil_madman Offline
motor_oil_madman  Offline
Joined: Nov 2009
Posts: 5,123
Houston, Texas
That's what i'll start doing I guess.


2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.

Re: CK-4 RT6: What have they done? [Re: A_Harman] #4403433
05/12/17 09:29 PM
05/12/17 09:29 PM
Joined: Feb 2016
Posts: 317
MD
claluja Offline
claluja  Offline
Joined: Feb 2016
Posts: 317
MD
Yep weak. Still p!sses me off how they snuck this new CK4 in their CJ4 bottles for months knowing that Ford was telling their diesel customers not to use the CK4. I was a loyal RT6 guy - never again.

Last edited by claluja; 05/12/17 09:29 PM.

2014 F250 6.7L PSD
2006 Sequoia 4.7L
2005 E500 5.0L
2018 Jeep Rubicon, Pentastar 3.6L
Re: CK-4 RT6: What have they done? [Re: A_Harman] #4403440
05/12/17 09:39 PM
05/12/17 09:39 PM
Joined: Dec 2002
Posts: 42,293
New Jersey
JHZR2 Offline
JHZR2  Offline
Joined: Dec 2002
Posts: 42,293
New Jersey
OP, where is your objective evidence to substantiate your claims that it is not a long life oil, or that it won't protect as well? If it is meant to be environmentally friendly, if anything, it will be a longer life oil. I don't see any current specs being less stringent than older ones...

I get it if you have some older vehicles, the zddp and flat tappet cam issue may be a concern...

Re: CK-4 RT6: What have they done? [Re: JHZR2] #4403449
05/12/17 09:47 PM
05/12/17 09:47 PM
Joined: Oct 2010
Posts: 7,097
Michigan
A_Harman Offline OP
A_Harman  Offline OP
Joined: Oct 2010
Posts: 7,097
Michigan
Originally Posted By: JHZR2
OP, where is your objective evidence to substantiate your claims that it is not a long life oil, or that it won't protect as well? If it is meant to be environmentally friendly, if anything, it will be a longer life oil. I don't see any current specs being less stringent than older ones...

I get it if you have some older vehicles, the zddp and flat tappet cam issue may be a concern...


Cummins B-series engine has a flat-tappet cam.


1985 Z51 Corvette track car
2002 Camaro Z28 LS1/6-speed
2001 Dodge Ram 2500 diesel
1972 GMC 1500 shortbed project truck
Re: CK-4 RT6: What have they done? [Re: A_Harman] #4403477
05/13/17 12:18 AM
05/13/17 12:18 AM
Joined: Dec 2013
Posts: 3,989
Manchester, England
Olas Offline
Olas  Offline
Joined: Dec 2013
Posts: 3,989
Manchester, England
redline does all the protecting any engine will ever need.


Cable ties should hold it
Re: CK-4 RT6: What have they done? [Re: A_Harman] #4403483
05/13/17 01:20 AM
05/13/17 01:20 AM
Joined: Apr 2015
Posts: 180
Houston, TX
czbrian Offline
czbrian  Offline
Joined: Apr 2015
Posts: 180
Houston, TX
Originally Posted By: A_Harman
I'll tell you what they've done. They've taken an oil I've run successfully for years, and turned it into some kind of a wimpy near-beer.

These are all the metals that were present. Where is Moly?
The zddp content has really dropped off.
Magnesium is almost gone, compared to the previous formulation.
This doesn't look like a long life oil anymore.

I think I need to start considering alternatives.


I dont understand why you are complaining. In the UOA you posted your wear metals are lower than previous samples. Other than a slightly lower TBN, the oil is working just fine.

Re: CK-4 RT6: What have they done? [Re: A_Harman] #4403524
05/13/17 04:51 AM
05/13/17 04:51 AM
Joined: May 2014
Posts: 1,429
quebec canada
yvon_la Offline
yvon_la  Offline
Joined: May 2014
Posts: 1,429
quebec canada
Plating an engine only work if wire touch (main ground isn't enough to achieve this. Yes oil maker had to reformulate. We all see how oil do from now on with all electrical wire air gaped


Truck driver
Nissan versa note s 2014 total classic 5w30(qc.ca) drivework oil filter
Re: CK-4 RT6: What have they done? [Re: czbrian] #4403525
05/13/17 04:52 AM
05/13/17 04:52 AM
Joined: Oct 2012
Posts: 4,825
Taiwan
Ducked Offline
Ducked  Offline
Joined: Oct 2012
Posts: 4,825
Taiwan
Originally Posted By: czbrian
Originally Posted By: A_Harman
I'll tell you what they've done. They've taken an oil I've run successfully for years, and turned it into some kind of a wimpy near-beer.

These are all the metals that were present. Where is Moly?
The zddp content has really dropped off.
Magnesium is almost gone, compared to the previous formulation.
This doesn't look like a long life oil anymore.

I think I need to start considering alternatives.




I dont understand why you are complaining. In the UOA you posted your wear metals are lower than previous samples. Other than a slightly lower TBN, the oil is working just fine.


Didn't we all agree never to mention UOA metals as valid indicators of wear ever again?...I could have sworn....

Re: CK-4 RT6: What have they done? [Re: yvon_la] #4403539
05/13/17 05:25 AM
05/13/17 05:25 AM
Joined: Oct 2012
Posts: 4,825
Taiwan
Ducked Offline
Ducked  Offline
Joined: Oct 2012
Posts: 4,825
Taiwan
Originally Posted By: yvon_la
Plating an engine only work if wire touch (main ground isn't enough to achieve this. Yes oil maker had to reformulate. We all see how oil do from now on with all electrical wire air gaped



Re: CK-4 RT6: What have they done? [Re: czbrian] #4403545
05/13/17 05:43 AM
05/13/17 05:43 AM
Joined: Feb 2016
Posts: 317
MD
claluja Offline
claluja  Offline
Joined: Feb 2016
Posts: 317
MD
Originally Posted By: czbrian
I dont understand why you are complaining. In the UOA you posted your wear metals are lower than previous samples. Other than a slightly lower TBN, the oil is working just fine.


Note the difference in P and Zn, between the UOA and this VOA.


2014 F250 6.7L PSD
2006 Sequoia 4.7L
2005 E500 5.0L
2018 Jeep Rubicon, Pentastar 3.6L
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