Oil Analysis Lab Test Results - Page 65

Oil Analysis Lab Test Results

This is a discussion on Oil Analysis Lab Test Results within the RAM 1500 Diesel Maintenance forums, part of the RAM 1500 Diesel Garage - RAM 1500 Diesel Mechanics Corner category; Originally Posted by SavagePatch Here's my latest UOA. Oil: Mobil 1 Turbo Diesel Truck 5w40 CK-4 Miles: 5,966 This oil was ran over the winter ...

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Thread: Oil Analysis Lab Test Results

  1. #641
    RAM Silver Member howie12's Avatar
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    Quote Originally Posted by SavagePatch View Post
    Here's my latest UOA.

    Oil: Mobil 1 Turbo Diesel Truck 5w40 CK-4
    Miles: 5,966

    This oil was ran over the winter with plenty of below freezing starts done via remote start and idled to defrost and warm cab. It showed about double the wear as my last fill of Mystik JT8 15w40 Synblend.

    Current fill is three gallons of Red Line 15w40 with a newly installed AFE oil pan.
    interesting to note that both the aluminum and iron went up with the 2 mobil Mobil tests vs the T6. Seems to indicate more cylinder/piston wear for the Mobil vs the T6. Also surprised by the high fuel in the last sample. Are your trips, once warmed up very short in the winter? I have much colder weather and starts here in Northern Wisconsin and have never seen a fuel dilution issue but most of my trips get the oil up to full temperature for at least half an hour. I did not go back and search other UOAs with the Mobil oil but it may be a bit lacking, I'm not sure.

  2. #642
    RAM Veteran SavagePatch's Avatar
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    Quote Originally Posted by howie12 View Post
    Quote Originally Posted by SavagePatch View Post
    This oil was ran over the winter with plenty of below freezing starts done via remote start and idled to defrost and warm cab.
    Are your trips, once warmed up very short in the winter?
    Almost all of my driving is highway and gets the truck up to temp.

    I commute 30mi each way on a part of i80 in the Sierra Nevadas that Vern has said is one of the tougher grades that he tows through.

  3. #643
    RAM Silver Member howie12's Avatar
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    Quote Originally Posted by SavagePatch View Post
    Almost all of my driving is highway and gets the truck up to temp.

    I commute 30mi each way on a part of i80 in the Sierra Nevadas that Vern has said is one of the tougher grades that he tows through.
    the results puzzle me then. Perhaps someone smarter will have some salient thoughts.

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  5. #644
    RAM Jr Member doenut's Avatar
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    Here is my latest Napa oil analysis performed by ALS in Atlanta. I sent it off for analysis the first time I changed it at 70k miles (I bought it at ~63k). Then I forgot to get a kit the next change at 80k so I skipped the analysis until this latest one at 90k. I'm driving right around 26k/year. Mostly on my daily work commute of 76 miles round trip. Occasional towing of my tractor or other things on my 18' trailer. Love this truck and Lord willing it will last for many years.

    Not sure what this report is truly telling me so if anyone has any insight, I appreciate it. Thanks!

    Attachment 80848ALSOilAnalysis.pdf

  6. #645
    RAM Sr Member BrianF's Avatar
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    So what I see doenut is this: As your mileage goes up, your engine is shedding its break in material. From 80-90k was this index, correct me if I am wrong? Your wear metals have dropped. You have no fuel, soot has even dropped, not like 0.3% is much to worry about. You have plenty of additives left (see if you can find a virgin oil sample for T6 to compare levels), your viscosity remains well within a 40 weight. T6 is known to shear, which is not necessarily bad but some would say its not desirable. From what I can tell, the engine is running good, wearing good and your oil has a lot more life left in it.

    Keep sampling and see how the wear metals trend. They may drop a bit more or they may float around the current numbers but a used oil analysis is only a snap shot, you need more data to plot on a graph and see where it all falls into the curve.

    Silicon is good as well, which says that the air filter is working. I would extend the next index. Throw on a few thousand more miles and resample. See what your counts are per thousand miles.
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  7. #646
    RAM Jr Member doenut's Avatar
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    Thank you for the explanation. Very informative, These two samples were 20k miles apart (I didn’t sample the 80k change). I will heed your advice. I failed to mention that I got the GDE tune around the time I got the first analysis done.
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  8. #647
    MAS
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    Well I sent off a sample from my last oil change to blackstone. 69000 miles on the truck, 9,300 miles on the sample. Have run rotella t-6 and stp, ecogard, and mahn filters(but mostly ecogard) since my first oil change at 7000 miles.
    Oil Analysis Lab Test Results-blackstone-1.jpg
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  9. #648
    RAM Sr Member BrianF's Avatar
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    That is a nice report!!!

  10. #649
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    It has surely eased my mind, but I guess it could still blow tomorrow.

  11. #650
    RAM Sr Member BrianF's Avatar
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    That's the crappy thing, looks like no warning for the bottom end grenading but if does not, you have one nicely wearing engine.

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