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Dirty oil

rmd

New Member
Jul 21, 2020
2
0
Truck Year
2015
I have a 2015 EcoDiesel that always has dirty oil. Always changed as book. All TSBs & recalls taken care off. The Cummins that i had for 12years was always clean. I change the oil and 100 miles later it is dirty are they all like this ? The oil filter is factory & the oil is Rotella T6 5/40
 

SLT

Member
Mar 28, 2016
45
17
Truck Year
2016
I have a 2015 EcoDiesel that always has dirty oil. Always changed as book. All TSBs & recalls taken care off. The Cummins that i had for 12years was always clean. I change the oil and 100 miles later it is dirty are they all like this ? The oil filter is factory & the oil is Rotella T6 5/40
I have a 2016 Eco Diesel. My Oil is always Black as well. Had Oil Analysis done 3 Times and change Oil at about 8000km. Analysis came back good. Now, why is the Oil so Black? My thought, the EGR is sending all that Exhaust back through the Engine. No wonder it's black.
The New 2020 Engine is said to send the Exhaust back through after it has gone through the Particulate Filter. Better or not?
I'm seriously looking at a 2021 Model. So far none available here in Canada. I was hoping for some Feedback on 3rd Gen Engine.
 
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rmd

New Member
Jul 21, 2020
2
0
Truck Year
2015
I thank you for the input. I think you are right about the EGR sending all the exhaust back through the oil. I am surprised to only get one comment, i would have thought RAM would have chimed in.
 

Mxvet0354

Member
Apr 20, 2020
54
21
Truck Year
2020
I have a 2020 and up to about 2,300 miles. Should be at 5k pretty quick. Planning oil change and analysis at 5K. I will report my findings. As of now it isn't black, I can still see through it easily on the dipstick.
 
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Green Diesel

Active Member
Nov 17, 2015
115
104
Truck Year
2014
The engine oil is dirty due to poor combustion in the cylinders. A portion of the soot leaks past the rings. EGR is a separate circuit and will clog intakes with a dirty tune like factory.
 

Ronald Doupe

Active Member
Mar 18, 2018
115
28
Truck Year
2017
Correct, soot gets past the rings, Diesel engines have much higher compression than a gas engine, and diesel combustion causes more soot than gas, it hurts nothing, my Cummins was the same, my motorhome the same, my motorhome Kubota engine for the generator same thing, my old
long gone Ford 7.3 same thing, as was the Mercedes 300SD, they all do it just service it per the manual and drive it dirty oil is completely normal
 

Will_CathVT

Member
Jul 9, 2019
77
24
Truck Year
2016
Mine is always dirty, I usually do an oil and filter change around 7500 at a RAM dealer. I don't want to give FCA any reason to balk on the warranty.
 
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