Amsoil 0w-30 Sig Series, 19,303 mi, MitsuOutlander

[SR56]

2008 Mitsubishi Outlander 3.0L V6

Diagnosis:
All wear rates normal. High level of oxidation and
nitration products detected. Viscosity within specified
operating range.
Action: As oil and filter(s) already changed, Resample at
a reduced service interval to further monitor.


Html:




DATE SAMPLED 19-Oct-11



Sample Miles 19,303

Vehicle Miles 58,832



OIL CHANGED Changed

OIL GRADE 0W30



FILTER Amsoil Ea



Metals (ppm)



Iron (Fe) 66

Chromium (Cr) 1

Lead (Pb) 2

Copper (Cu) 9

Tin (Sn)
Aluminium (Al) 13

Nickel (Ni) 1

Silver (Ag)
Titanium (Ti)
Vanadium (V)


Contaminants (ppm)



Silicon (Si) 48

Sodium (Na) 19

Potassium (K) 7

Water (%)
Coolant No



Additives (ppm)



Magnesium (Mg) 21

Calcium (Ca) 3743

Barium (Ba) 4

Phosphorus (P) 823

Zinc (Zn) 922

Molybdenum (Mo) 1

Boron (B) 6



Physical Tests



Viscosity (cSt 100C) 11.3



Physical / Chemical



Base Number (mgKOH/g) 2.4



Oxidation (Abs) 56

Nitration (Abs) 81

 

[simple_gifts]

Is the SSO or AZO.

 

[ltslimjim]

Seems to have started thickening some. Good numbers overall. Rate of entry by Si normal, if that could improve the better.

I'd try out AZO and re-sample at 15,000.

How much time was this oil in the engine?

 

[SR56]

SSO

 

[SR56]

Oil was in slightly over one year. I switched to the 5w-20 Signature (ALM).

 

[ltslimjim]

Originally Posted By: BearGator56
Oil was in slightly over one year. I switched to the 5w-20 Signature (ALM).


Cool, what air filter were you using?

 

[SR56]

Here's the thing. I screwed up and forgot about the air filter. It was stock until this oil change. DOH! Yeah, it was effin' dirty...

 

[oggb]

Good amount of Si you've got there.

 

[SR56]

Think that might be because of the dirty filter left in there far too long?

 

[ChiTDI]

Originally Posted By: BearGator56
Think that might be because of the dirty filter left in there far too long?

For sure.

Oil held up well. Oil filter might not be able to do 20k and that's why the possible nitration issues.
What kind did you use?

 

[sidney004]

Originally Posted By: ChiTDI

Oil filter might not be able to do 20k and that's why the possible nitration issues.


The nitration numbers may be a non issue. I was told by Dave at RL that ester based oils show high nitration numbers due to their chemical composition. If the 0W-30 Sig Series has a significant ester component, this may be what you are seeing.

 

[ltslimjim]

Originally Posted By: sidney004
Originally Posted By: ChiTDI

Oil filter might not be able to do 20k and that's why the possible nitration issues.


The nitration numbers may be a non issue. I was told by Dave at RL that ester based oils show high nitration numbers due to their chemical composition. If the 0W-30 Sig Series has a significant ester component, this may be what you are seeing.


This is a mainly group IV oil, even though the initial Virgin oil nitration is higher in this oil, it's hard to know how read into it without the Virgin sample tested for nitration. It does seem high, though, IMO.

If this app had a bypass system, he'd be set for greater things.

 

[chubbs1]

That was a good report.

 

[Artem]

Awesome run and report. Thanks for posting.

Definitely keep an eye on that air filter.

 

[HTSS_TR]

You should change air filter every 35-40k miles. Almost 60k miles on the factory air filter is too much, unless the air is very clean where you drive.

 

[Clevy]

You are far braver than I. I would have had the shakes and lost sleep at 10000. Nice to see someone really testing the manufacturers claims. Also nice to see a manufacturers claims actually being close to true.

 

[wlyszkow]

Any oil added during this OCI?
ALM's Noack is impressive ;-) my next oil too ;-)

 

[Donald]

Great UOA. Thanks.

 

[webfors]

not bad, I wouldn't go longer. Bad boy leaving that air filter for an extended OCI.

 

[addyguy]

For 19k miles, with that amount of Si, the SSO protected well.

Good show!