Oil Analysis at 130K

[bedroc]

As a comparison here are my sample results. My truck has a lot less miles then the OP's, currently at 68000 miles.

First oil change was done at 7750 when EVIC indicated oil change. Oil used was Amsoil DMEQT and EAO80 filter.

Second oil and filter change was done when sample #2 was taken, truck was stock

Third oil and filter change was done when sample #4 was taken, truck was stock, fumoto valve installed with oil change.

Fourth oil and filter change was done with no sample at 58,409 miles. Truck was stock until fourth oil change then we deleted.

Sample #5 is fully a deleted sample.

This truck is used as a daily driver with a round trip of 50 miles 75% highway 65 mph and 25% city. With approx 20000 miles towing 8000-12000 lbs.

 

[mfurrh55]

I use Amsoil and i buy a case at a time (4) gal. 104. 00 and 16. 00 for filter, after 3 oil changes, I have 3 gal. left over, which equals another oil change, so IMO ,you can't beat a deal like that, NOW, THAT'S JUST MY OPINION , MOnte

 

[Cummins12V98]

Here is an example of the VISUAL difference between Delo 15-40 and AMZ/OIL 15-40. Did the killer dowel pin on my 98 12Vat 100K it had delo for the first 58K and I then ran AMZ/OIL. At 100K I did the dowel pin and the inside of the timing cover and block was covered with black streaks. Then we did my Dad's truck that had 120K and he had ran AMZ/OIL from 6K with a by pass filter, the engine was spotless!!!!!!!

My 98 has 368K and at 5k the oil is dark but still translucent on the dip stick.

 

[Gary - K7GLD]

Here is an example of the VISUAL difference between Delo 15-40 and AMZ/OIL 15-40. Did the killer dowel pin on my 98 12Vat 100K it had delo for the first 58K and I then ran AMZ/OIL. At 100K I did the dowel pin and the inside of the timing cover and block was covered with black streaks. Then we did my Dad's truck that had 120K and he had ran AMZ/OIL from 6K with a by pass filter, the engine was spotless!!!!!!!

My 98 has 368K and at 5k the oil is dark but still translucent on the dip stick.

WOW - that oil is so "transparent", I can't even SEE it!

 

[Bob4x4]

I pulled the pan off my 94 a few years back when I was doing a clutch-my pan was spotless. Only dino oil and factory filters except maybe once when I won a raffle prize of a case of Valvoline synthetic at the grand opening of Cummins Cal Pacific rv/pick-up shop

 

[jdross440]

For comparisons, here's my 100K analysis taken at time of "delete" and the 104K as requested by Blackstone.