04.5 Cummins, 9792 miles, Rotella 15w40 CJ-4

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Well here it is, amazingly fast too since I just sent this in Saturday! This was post bypass filter because it was easy. This is Shell Rotella T 15w40 CJ-4 oil, run 9792 miles, in my 2004.5 600CTD Dodge Ram. I was curious about how the CJ-4 would hold up after hearing all the "horror stories" about the CJ-4 change...

ALUMINUM 2
CHROMIUM 1
IRON 24
COPPER 2
LEAD 0
TIN 0
MOLYBDENUM 1
NICKEL 0
MANGANESE 0
SILVER 1
TITANIUM 0
POTASSIUM 5
BORON 17
SILICON 4
SODIUM 2
CALCIUM 2537
MAGNESIUM 9
PHOSPHORUS 1000
ZINC 1126
BARIUM 0

STEVE: Your sampling method worked perfectly. All wear read at or below universal averages in the first sample from your Cummins engine. Universal averages are based on an oil run of ~6,700 miles so your engine is wearing better than most. This, combined with the strong TBN reading of 6.7, indicates that you could easily go more miles on the next oil. We don't think 11,000 miles would be too many. The oil was in good shape physically, containing no moisture, fuel, or coolant. The air and oil filters are working well too. At 108,993 miles your 5.9L is wearing nicely!

SUS Viscosity @ 210*F = 79.5
Flashpoint in *F = 420\
Fuel % = AntiFreeze % = 0.0
Water % = 0.0
Insolubles % = 0.4

Let me know how this looks!!!

steved
 
Apparently the CJ-4 does hold TBN pretty well. With a few more UOA's we should defintely know more about the CJ4 oils.

By the way, the 6.7 TBN of Blackstone usually equates to a higher reading with other oil labs. You wear numbers look good as do your insoluble levels.
 
I like it! I hope my UOA looks as good at 7500 miles(planned sample time). I too run the Rotella T CJ-4 oil. Should be another mo. or so before I sample. Here is a link to the Virgin Oil Sample I took of the oil I put in my truck, '06 Dodge 2500 w/5.9L Cummins. Silicon matches your UOA, so you must be filtering air pretty good.
cheers.gif


VOA of Rotella T CJ-4
 
I am going to repost these with the universal averages since iron was at 24ppm and the UA is 23ppm.

ALUMINUM 2 4
CHROMIUM 1 2
IRON 24 23
COPPER 2 4
LEAD 0 3
TIN 0 1
MOLYBDENUM 1 22
NICKEL 0 0
MANGANESE 0 0
SILVER 1 0
TITANIUM 0 0
POTASSIUM 5 2
BORON 17 90
SILICON 4 7
SODIUM 2 4
CALCIUM 2537 2860
MAGNESIUM 9 247
PHOSPHORUS 1000 1082
ZINC 1126 1261
BARIUM 0 1


SUS Viscosity @ 210*F = 79.5 / 69-80
Flashpoint in *F = 420 / >410
Fuel % = AntiFreeze % = 0.0 / 0
Water % = 0.0 / 0.0
Insolubles % = 0.4 /
The first column is actuals, the second is universal averages...should have done this the first time through!

steved
 
Looking good steve. Here is a copy of my last sample that we both ran around the same mileage to compare to. My truck at this sample had 40k on it and yours is wearing a little better with more time on it. The TBN's are very close too. You didn't say if you had any makeup oil or not. The sample of mine had 4 qts, so assuming you had none, the cj-4 held up better than.

40,665 miles on the truck at this sample and 10,179 on the ci-4 Rotella. Makeup oil was 4qts, as I changes the tp every 2k.

aluminun 2
chromium 3
iron 33
copper 8
tin 3
lead 2
moly 1
nickel 1
manganese 1
silver 2
titanium 0
potassium 2
boron 1
silicon 5
sodium 3
calcuim 3600
magnesium 12
phosph 1059
zinc 1223
barium 0

sus 79.3
flashpoint 415
fuel trace antifreez 0
water 0
insolubles .4
TBN 7.0
 
Quote:


You didn't say if you had any makeup oil or not. The sample of mine had 4 qts, so assuming you had none, the cj-4 held up better than.





No make up oil...in fact I only used about 0.5 quarts of oil in that time (based on the dipstick)...and I didn't top it off.

I feel pretty good about it...while iron is "average", it still says a lot about this new CJ-4 oil...

steved
 
I'm only going to add that I would wonder if the CI-4 oil would be different than the CJ-4 oil (we are comapring "CI-4 plus" to CJ-4)...maybe they didn't need to change formulation that much with the CI-4 plus???

steved
 
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