Amsoil S3K HDD 5W30, 4323 oil miles, 2000 Subaru Outback 2.5L

[porcupine73]

This UOA is from my 2000 Subaru Outback 2.5L 4cyl gasoline non-turbo.
This vehicle also runs an Amsoil BE-100 add-on bypass filter and Canton Racing Accusump (1 quart) for preoiling.

• Oil: Amsoil Series 3000 HDD 5W30 Heavy Duty Diesel
• Full flow oil Filter: Amsoil SDF36
• Bypass oil filter: Amsoil BE-100
• Engine: 4cyl 2.5L
• Fuel type: Gasoline
• Oil cap: 4.2 quart [+1.5 quart bypass]
• Air filter: OEM
• Lab: Oil Analyzers Inc. (Amsoil)
• Makeup oil: None
• Sample date: 12/20/05
• Sample mileage: 99423
• Oil miles: 4323

code:

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Analysis (ppm)

Fe 2

Cr 0

Pb 5

Cu 2

Sn 1

Al 5

Ni 0

Ag 0

Mn 0

Si 3

B 0

Na 3

Mg 0

Ca 3739

Ba 0

P 1265

Zn 1325

Mo 0

Ti 0

V 0

Cd 0

Glycol NEG

Water%
Fuel%
Vis 40C NA

Vis 100C 11.8

Solids% TR

Soot NA

Oxd% 3.3

Nox% 18.6

TBN NA

TAN NA



RESULTS OF TESTS PERFORMED INDICATE: NO CORRECTIVE ACTION REQUIRED

OIL IS SUITABLE FOR CONTINUED USE RESAMPLE AT NEXT REGULAR INTERVAL

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One note I have is that I added about 12 fl.oz. of Schaeffer's #132 Moly E.P. Treatment to this oil, but the sample results show zero moly.

(For reference, link to URL from Amsoil S3K 5W30 HDD in my 96 Subaru Legacy.)

 

[The Critic]

These results seem suspicious.

First the results show No Moly (when it should show some); second, the viscosity reading is quite questionable as well...baseline for this oil is 11.7cst, the #132 should thicken it much more than 0.1cst...

BTW, why is there no TBN reading? Doesn't Oil Analyzers run TBN on all samples?

 

[porcupine73]

Thanks for the comments Michael Wan. I think I will contact the lab about the TBN. I have had a few other samples analyzed by this lab and the TBN was not included on those either. Maybe it's because these vehicles are supposed to be on the Amsoil 'tri-gard' plan. The results form looks a little different from the regular analysis form. But yet TBN is an important value to know, no?

I thought more about the zero moly result and it does make sense. I would expect about 1ppm moly in this sample based on the following. There was a discussion recently about the #132 Moly E.P. pointing to some VOA's 1 2 showing approx. 20-23ppm moly, and I diluted .375 quart #132 into about 5.8 quarts of oil for a total oil volume of about 6.175 quarts, so the oil should have maybe 1ppm moly (if my calculation is correct ->
20ppm*[.375qt/6.175qt]=1.2ppm

Not sure what to think about the viscosity you mentioned.

-Louis

 

[IslaVistaMan]

Next time leave out the #132, and use Blackstone to do your test.