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#3409795 - 06/29/14 07:41 AM Blackstone, diesel UOA, and soot.
RangerGress Offline


Registered: 11/04/08
Posts: 54
Loc: GA
I've used Blackstone for UOA on a race car for years, but now I want to do a UOA on my Ram Ecodiesel. My understanding is that I need to be aware of soot (ash?) levels in the UOA to judge when the oil is done. Blackstone doesn't seem to provide a # for soot in their analysis, so maybe I need to use a different lab?

Altho I can read a UOA it's kind of from a race car perspective so I'm really just looking at metals and dilution. I don't have any experience judging when an high mileage oil is "done" because race cars have frequent oil changes.

Guidance on reading a UOA for a low SAPS engine? I searched around but the threads re. reading a UOA are generic. Maybe that means there's nothing unique about reading a low SAPS UOA?


Edited by RangerGress (06/29/14 07:43 AM)

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#3409800 - 06/29/14 07:51 AM Re: Blackstone, diesel UOA, and soot. [Re: RangerGress]
yvon_la Offline


Registered: 05/20/14
Posts: 740
Loc: quebec canada
Might want to look on the cummins website they might be able to help with a few pointers between you and blackstone.cummins engine are awsome if most of the time a bit feisty!also you are likely to have issue in ga ,there arent many place that sell 0% bio diesel .if you can find a 0% bio diesel place and fuel there.basicly bio diesel is good but in 1% quantity .so check you r fuel tank size grab a fuel canister with 20% biodiesel fuel 5 gallon means you ll have 1 gallon of bio so 1% make about 100 gallon so you should be good for 3 fill of 0% bio with a 5 gallon jug .and no you cant run oil non bio .as that will also give trouble (ultra low sulfur diesel)
_________________________
Truck driver
Nissan versa note s 2014
Mechanicly inclined

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#3409808 - 06/29/14 07:58 AM Re: Blackstone, diesel UOA, and soot. [Re: RangerGress]
Donald Offline


Registered: 03/21/04
Posts: 15418
Loc: Upstate NY
I would go with Polaris. I think Blackstone is fine for car enthusiasts but Polaris is better for commercial and industrial (and normal cars). They are cheaper if you buy a 10 pack which I do.
_________________________
2015 Subaru Forester 2.5 engine/CVT PP & M1
2001 Jeep Grand Cherokee Laredo 4.0 - PP & M1
1999 Dodge Ram 2500 w/Cummins - Rotella T6 & M1


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#3409809 - 06/29/14 08:00 AM Re: Blackstone, diesel UOA, and soot. [Re: RangerGress]
Donald Offline


Registered: 03/21/04
Posts: 15418
Loc: Upstate NY
You are looking for fuel, soot and iron (mainly) to tell you when oil is finished and needs to be changed. Cummins has charts of contamination levels and when to change the oil.
_________________________
2015 Subaru Forester 2.5 engine/CVT PP & M1
2001 Jeep Grand Cherokee Laredo 4.0 - PP & M1
1999 Dodge Ram 2500 w/Cummins - Rotella T6 & M1


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#3409823 - 06/29/14 08:19 AM Re: Blackstone, diesel UOA, and soot. [Re: Donald]
RangerGress Offline


Registered: 11/04/08
Posts: 54
Loc: GA
Originally Posted By: Donald
You are looking for fuel, soot and iron (mainly) to tell you when oil is finished and needs to be changed. Cummins has charts of contamination levels and when to change the oil.

I'm surprised to hear you say the iron is an important measure of when to change the oil. Seems like once I'm getting iron because of oil quality, I should have already changed my oil. I would have thought dilution, particulates, visc, and TBN. Since you didn't mention TBN, maybe it's not such a good measure of oil life in diesel engines?

Not a Cummins engine, this is the Ram 1500 Ecodiesel. I figure the Cummins chart still ought to be a pretty good source of info tho.


Edited by RangerGress (06/29/14 08:20 AM)

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#3409929 - 06/29/14 11:06 AM Re: Blackstone, diesel UOA, and soot. [Re: RangerGress]
Donald Offline


Registered: 03/21/04
Posts: 15418
Loc: Upstate NY
I would certainly consider TBN. Polaris provides it for free. I am using T6 in my Cummins and my last OCI was at 18K with plenty of life left.
_________________________
2015 Subaru Forester 2.5 engine/CVT PP & M1
2001 Jeep Grand Cherokee Laredo 4.0 - PP & M1
1999 Dodge Ram 2500 w/Cummins - Rotella T6 & M1


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#3409975 - 06/29/14 12:11 PM Re: Blackstone, diesel UOA, and soot. [Re: RangerGress]
Texan4Life Online   content


Registered: 01/28/10
Posts: 2259
Loc: Texas
Originally Posted By: RangerGress
Originally Posted By: Donald
You are looking for fuel, soot and iron (mainly) to tell you when oil is finished and needs to be changed. Cummins has charts of contamination levels and when to change the oil.

I'm surprised to hear you say the iron is an important measure of when to change the oil. Seems like once I'm getting iron because of oil quality, I should have already changed my oil. I would have thought dilution, particulates, visc, and TBN. Since you didn't mention TBN, maybe it's not such a good measure of oil life in diesel engines?

Not a Cummins engine, this is the Ram 1500 Ecodiesel. I figure the Cummins chart still ought to be a pretty good source of info tho.


Since the Ecodiesel is new to the market, short answer would be to watch everything in the UOA.

Only a few engine manufacturers provide contaminate condemnation levels, such as Cummins... I would just keep those number in the back of you head since its easy for us on BITOG to freak out of a few PPM.

Out of curiosity what oil specs does this engine call for?

Can't wait to see your UOAs.
_________________________
2005 Dodge Ram 1500, 5.7L
[Current Fill: PP 0w-20][Baldwin B2-HPG]

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#3410088 - 06/29/14 03:11 PM Re: Blackstone, diesel UOA, and soot. [Re: Texan4Life]
RangerGress Offline


Registered: 11/04/08
Posts: 54
Loc: GA
Originally Posted By: Texan4Life


Out of curiosity what oil specs does this engine call for?

It's some low SAPS Euro oil spec that's going to make for $200 oil changes (10.5qts). I'd like to use UOA to set oil change interval instead of the generic 10k mile OEM recommendation.

Chrysler MS-11106. M1 ESP 5W30 is one oil that apparently meets the standard.



Edited by RangerGress (06/29/14 03:13 PM)

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#3410484 - 06/29/14 11:20 PM Re: Blackstone, diesel UOA, and soot. [Re: RangerGress]
Fraser434 Offline


Registered: 09/17/11
Posts: 126
Loc: Chicago
8 Quarts for an EcoDiesel, 10k Miles is the manufacture spec if you use non bio fuel. Otherwise 8k miles oil change interval if using B6-B20, which every pump i've seen in the midwest says its maximum B20.


Edited by Fraser434 (06/29/14 11:22 PM)

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