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2 different labs #4472060
07/27/17 01:20 PM
07/27/17 01:20 PM
Joined: Dec 2016
Posts: 279
Sav ga
NStuart Offline OP
NStuart  Offline OP
Joined: Dec 2016
Posts: 279
Sav ga
My second Detroit Diesel 14 liter finally got to 30,000 miles with the bypass and Schaeffer's 9000 5w-40. Yesterday I mailed out two samples one to Blackstone and 1 to Schaffer's, what kind of differences do y'all expect to see any guesses up front

As this oil cleans out these engines I don't expect to see amazing length of oil change on the first run, the first truck had .5% insolubles at 30k and I changed the full flow the second truck is going to be the same I'm convinced

I requested a tan test I always do TBN, can somebody please give me some insight on the TAN test

Thanks as always


Detroit14l 1m75k mi bp schaffer9k 30k oil
96 ram 5.9 gas 80k built tranny 5k m1
85 cj7 4.2 performance build. Schaeffer 9000
08 cbr600rr graffiti. T6
08 husky sm610 t6
Re: 2 different labs [Re: NStuart] #4472068
07/27/17 01:26 PM
07/27/17 01:26 PM
Joined: Sep 2015
Posts: 884
California
mbacfp Offline
mbacfp  Offline
Joined: Sep 2015
Posts: 884
California
Fuel Dilution.


2014 F-550 PSD..........M1 Delvac ESP 5w-40 + OEM
2018 Dodge Charger SRT Hellcat
2012 Toyota Sienna LTD 3.5L V6
2003 Dodge Durango R/T 4x4 5.9L V8
Re: 2 different labs [Re: NStuart] #4472091
07/27/17 01:50 PM
07/27/17 01:50 PM
Joined: Jul 2005
Posts: 30,995
NY
demarpaint Offline
demarpaint  Offline
Joined: Jul 2005
Posts: 30,995
NY
I'd be interested in seeing the results. The cynical side of me says the Schaffer's report will be better than the B_S report, assuming there are no problems with air filtration or coolant getting into the oil. In otherwords if there are no problems with the engine, I'd expect the Schaffers report to tout their product with a stellar report. hide I may be 100% wrong, but that's why I'd use a lab not associated with a company selling oil. FTR I'm not singling out Schaeffers.......It will be a good test in any event.


God Bless Our Troops

Re: 2 different labs [Re: NStuart] #4472095
07/27/17 01:52 PM
07/27/17 01:52 PM
Joined: Oct 2005
Posts: 7,094
Colorado
Kuato Offline
Kuato  Offline
Joined: Oct 2005
Posts: 7,094
Colorado
Both samples should be within a couple ppm either way, as there's a bit of variation in machines doing the testing.

TAN, total acid number, is a reference to the amount of acid building up in the oil from the byproducts of combustion. Some say to condemn and change the oil when TAN and TBM cross, others that TAN can be higher than TBN*. Either way, there is some point at which the oil can no longer absorb the acids and will start to thicken; IMO the oil should be changed prior to this point.


*Some oils start with a higher TAN so there is variability here depending on the oil and the application

I'm sure more knowledgeable folks will chime in....


Thick vs Thin test: 15k / 43k miles complete
Re: 2 different labs [Re: NStuart] #4472153
07/27/17 03:12 PM
07/27/17 03:12 PM
Joined: Dec 2016
Posts: 279
Sav ga
NStuart Offline OP
NStuart  Offline OP
Joined: Dec 2016
Posts: 279
Sav ga
In the past fuel dilution has always been less than .5% except for a run on my 12.7 where the OC I was 40000 MI it was at 1.0


Detroit14l 1m75k mi bp schaffer9k 30k oil
96 ram 5.9 gas 80k built tranny 5k m1
85 cj7 4.2 performance build. Schaeffer 9000
08 cbr600rr graffiti. T6
08 husky sm610 t6
Re: 2 different labs [Re: NStuart] #4472344
07/27/17 06:55 PM
07/27/17 06:55 PM
Joined: Oct 2012
Posts: 4,825
Taiwan
Ducked Offline
Ducked  Offline
Joined: Oct 2012
Posts: 4,825
Taiwan
Originally Posted By: NStuart
the first truck had .5% insolubles at 30k



That weight/weight or weight/volume?

Either way it seems like quite a lot, but I don't know what's typical and I don't know how they measure it.

IIRC for one of the determinations, which MIGHT be insoluables, they do a centrifugation and just assess the pellet visually, so not very precise.

Re: 2 different labs [Re: Kuato] #4472545
07/27/17 10:08 PM
07/27/17 10:08 PM
Joined: Jun 2002
Posts: 19,529
Iowegia - USA
MolaKule Offline
MolaKule  Offline
Joined: Jun 2002
Posts: 19,529
Iowegia - USA
Originally Posted By: Kuato
Both samples should be within a couple ppm either way, as there's a bit of variation in machines doing the testing.


TAN, total acid number, is a reference to the amount of acid building up in the oil from the byproducts of combustion. Some say to condemn and change the oil when TAN and TBM cross, others that TAN can be higher than TBN*. Either way, there is some point at which the oil can no longer absorb the acids and will start to thicken; IMO the oil should be changed prior to this point.


*Some oils start with a higher TAN so there is variability here depending on the oil and the application

I'm sure more knowledgeable folks will chime in....



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