Dodge Durango 3.6L - HPL CK-4 5w-20 - 12,000 miles on oil - 152,000 total

wwillson

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This sample was pulled from my 2014 Dodge Durango with a total of 152,000 miles and 12,000 miles on the oil. The oil is HPL's 5w-20 CK-4 based formula and has been run since Feb 9, 2022, about 14.5 months. The lab is Wearcheck. There is still cleaning taking place. This is the filter thread I posted:

I have normalized the oxidation by taking the absolute value and subtracting the base oxidation value of virgin oil. Esters are high in carbonyl groups, ASTM D7414 will show high oxidation even in virgin oil.

The TBN, oxidation, wear, and contaminants all look good. The viscosity has increase by 12%, so we'll watch this at the next sample.

It is interesting to see from the intense cleaning in the first run, that he carbon deposits broken loose were causing oxidation in the oil. The second run has less cleaning and less oxidation. I'm not sure I remember seeing this before, even with the thousands of UOA we've looked at over the years.

Sample Information
Sample DateFeb 2020Dec 2020March 2021August 2021October 2021February 2022March 1, 2022September 5, 2022April 19, 2023
Machine Age miles116,000122,200127,420132,679137,615140,000141,500147000152000
Oil Age miles5,00011,20015,82021,07926,0152,5001,500700012000
Filter Age miles5,00011,20015,82021,0794,9362,5001,50020005000
Oil Changednonononoyesyesyesnono
Filter Changednononoyesyesyesyesyesyes
BrandHPLHPLHPLHPLHPLHPLHPLHPL
Viscosity5w-20 HDEO5w-20 HDEO5w-20 HDEO5w-20 HDEO5w-20 HDEO5w-20 HDEO5w-20 HDEO5w-20 HDEO5w-20 HDEO
new formulanew formula
Wear Metals
Iron513214262196915
ChromiumTD]
[TD]TD]
[TD]TD]
[TD]2
2TD]
[TD]TD]
[TD]TD]
[TD]TD]
Nickel000TD]
[TD]0
0TD]
[TD]0
0
TitaniumTD]
[TD]TD]
[TD]TD]
[TD]TD]
[TD]2
TD]
[TD]TD]
[TD]TD]
[TD]0
SilverTD]
[TD]TD]
[TD]TD]
[TD]TD]
[TD]TD]
[TD]TD]
[TD]0
TD]
[TD]0
Aluminum331554241
Lead00TD]
[TD]1
TD]
[TD]1
100
Copper31016396664316572
Tin0TD]
[TD]0
TD]
[TD]TD]
[TD]TD]
[TD]TD]
[TD]0
0
VanandiumTD]
[TD]TD]
[TD]0
TD]
[TD]TD]
[TD]TD]
[TD]0
TD]
[TD]0
Additives
Boron1818142432320220
Barium301020000
Molybdenum523521500518545535492548600
ManganeseTD]
[TD]TD]
[TD]TD]
[TD]2
31TD]
[TD]TD]
[TD]TD]
Magnesium462446430467461107810919811158
Calcium342232373203337935622812243124582767
Phosphorus7887777607548021137109410241095
Zinc9489248849499881326117612711411
Contaminants
Silicon111115253317121318
Sodium445884035
Potassium1TD]
[TD]2
341022
Fuel %TD]
[TD]TD]
[TD]TD]
[TD]TD]
[TD]TD]
[TD]TD]
[TD]TD]
[TD]TD]
[TD]TD]
GlycolNEGNEGNEGNEGNEGNEGNEGNEGNEG
Soot%0.10.10.10.10.10.10.10.10.1
Fluid Condition
TBN12.37.35.053.9852.851216.810.89.28
Viscosity8.89.19.49.5610.69.29.41010.4
Oxidation515.322.524.131217.49.7
[TD]
[TD]
[TD]
 
Last edited:
This has probably been discussed in your previous threads, but I notice a large increase in wear metals (iron and copper) and silicon after 16k miles on your first run. Changing the oil filter at 21k did not seem to do much to change this trend, so I don't think it was the culprit. It seems that the oil did not want to go much past 16k. Did you happen to replace the air filter around this time?

Any idea what is going on with copper? It hardly went down after two short OCIs. Does the new virgin HPL test high for copper or something?
 
Did you happen to replace the air filter around this time?
I changed it at about 21,000 miles:

Any idea what is going on with copper? It hardly went down after two short OCIs.
Most likely chelation from the oil cooler, but this has been debated. The bottom line is we aren't sure, but aren't concerned about it.

Does the new virgin HPL test high for copper or something?

No it isn't.
 
Why hasn’t soot percentage changed at all throughout nine different analysis‘s? Is soot hard to measure? Will an oil filter be able to filter soot like this every time, and produce the same results over and over again? Is it too much to expect soot to increase from one percentage point to two?

And the viscosity increase is interesting. That’s a timing chain engine (if I remember), I would have thought the viscosity would have decreased. Mine did on a 10,000 mile UOA. Interesting stuff! Thanks for posting.
 
I think it's doing well. Got to love that engine, no issues whatsoever with fuel dilution. They made a smart move imo not going to DI with that engine platform.
 
Why hasn’t soot percentage changed at all throughout nine different analysis‘s? Is soot hard to measure? Will an oil filter be able to filter soot like this every time, and produce the same results over and over again? Is it too much to expect soot to increase from one percentage point to two?
I don't think the soot test works in gasoline engines, only in diesel. Maybe someone who understands the ASTM soot test will chime in.

That’s a timing chain engine (if I remember), I would have thought the viscosity would have decreased.
Yes, the Pentastar is a timing chain engine. The VII is very shear stable, so you don't see this oil shear. As oxidation and contamination occur, you'll see the viscosity slowly increase.
 
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