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Old 09-09-2009, 09:05 PM   #1
bluesubie
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Join Date: Jan 2000
Chapter/Region: Tri-State
Location: N.J.
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04 FXT

Default Amsoil SSO 0W-30 UOA - 8,471 - miles, FXT

UOA by Oil Analyzers Inc.
Driving conditions: Oil in use Nov. June; 7 mile daily commute each way; a couple of days driving on the beach, no engine mods but spirited driving with a few WOTs here and there.
Oil changed but filter not changed.

My last uoa is here . Sodium dropped nicely so it looks like maybe it was due to my new turbo installation. Lead took a little jump. Make-up oil on this OCI was two quarts! Im running Amsoil DEO 5W-40 now.

Comments: Data indicates no abnormal findings; Resample at normal interval; Lubricant change acknowledged

Equipment make: Subaru
Equipment model: 2.5L Turbo
Oil use interval: 8,471
Oil type & Grade: Amsoil SSO 0-W30
Make-up oil added: 2 qts.
Miles on unit: 82,500
Air filter: Amsoil Ea panel filter
Oil filter: Amsoil EaO oil filter

Overall severity of report = 0 normal
SSO; SSO; GC (B-stone)
Iron 11 11 12
Chromium 0 0 1
Nickel 0 0 1
Aluminum 3 3 4
Copper 5 6 7
Lead 10 4 5
Silicon 10 11 14
Sodium 28 90 10
Potassium 2 2 2
Molybdenum 2 1 2
Antimony 0 0 -
Manganese 4 0 0
Lithium 3 0 -
Boron 7 7 2
Magnesium 17 17 587
Calcium 3497 3423 1812
Phosphorus 654 677 873
Zinc 717 755 1106

Lube chg Y
Filter chg N (still looked brand new!)
Fuel <.5% <.5%
Soot <.1% <.1%
Water <.1% <.1%
Vis @ 100C: 10.1 9.6
TBN 4.35 4.01
Oxidation 43 38
Nitration 32 27

Comments?


-Dennis
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Old 09-09-2009, 09:58 PM   #2
gathermewool
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Location: CT
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14 FXT Touring
VRP

Default

In your last UOA you said zero values were omitted. Zero for tin, then?

How long before the sample did you add make up oil? Do you add each time you check or do you add when the dipstick indicates add?

With the 2 fresh quarts/OCI, relatively low wear, and high TBN I'd probably run it to 10kmi this time. I'm still trying to figure out how long an oil filter will last in a motor that doesn't have a sludge or particulates problem. What're your plans?

Also, what do you know about the nitration and oxidation numbers? I'm still trying to figure out how to read these.
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Old 09-09-2009, 10:00 PM   #3
09rexwagon
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STX #66, 06 S2000 STR 180

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In the fuel dilution, viscosity etc section, you only have 2 numbers. Was it SSO that sheared to 9.6 or GC?

Was the sodium attributed to coolant?

Not much moly in SSO, eh?
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Old 09-09-2009, 10:42 PM   #4
AndyH
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Quote:
Originally Posted by 09rexwagon View Post
In the fuel dilution, viscosity etc section, you only have 2 numbers. Was it SSO that sheared to 9.6 or GC??
My money is on the SSO, but we'll see what Dennis has to say
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Old 09-10-2009, 01:06 AM   #5
RonJitsu
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Here is Dennis's last UOA on SSO.

So it looks like both the 10.1 & 9.6 are SSO.
I think he is running DEO for his current OCI...
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Old 09-10-2009, 10:41 AM   #6
gathermewool
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Quote:
Originally Posted by bluesubie View Post
My last uoa is here . Sodium dropped nicely so it looks like maybe it was due to my new turbo installation. Lead took a little jump. Make-up oil on this OCI was two quarts! Im running Amsoil DEO 5W-40 now.
I think so, too
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Old 09-10-2009, 07:00 PM   #7
bluesubie
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Thank you, Ron. I see that I didn't add the properties in the GC properties above in the third column. Yes, GC has sheared a little for me but not by much. Also, keep in mind that the SSO starts out thinner to begin with (10.3 vs 12.1). Adding two qts. probably helped SSO's viscosity.

My make-up oil was added at 3k and at 5,594. There was no consumption at first during that first 3k and then I checked the oil after driving spiritedly beside an STI (obeying traffic laws as applicable) and I was down a quart.

Didn't have much consumption until the 5,594 and then I was down a quart again. It could have been due to my new turbo (kept the SSO in), or just the way my car was broken in (by the book). SSO is too expensive to keep adding so I switched to something more robust.

Ron - I can't believe that you don't have consumption with SSO, especially now that you upgraded your turbo. Maybe it's because you stuck with Amsoil from the beginning.

Yeah, not much moly in SSO. I think the base stock (PAO/ester) makes up for some of the lower additives in it. I wish Amsoil made an oil like Red Line's street oils. Their Dominator series has a higher dose of AW additives than the CI-4+ oils.

Haven't decided if I'm sticking with Amsoil. The price/performance of GC is very tempting to go back to. Maybe I'll even try a Subaru blue can of death oil filter.

-Dennis
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Old 09-10-2009, 08:38 PM   #8
09rexwagon
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Oh ok, I didn't think GC would shear to 9.46 unless there was heavy fuel dilution.

Isn't SSO predominantly ester based? (more grpV than grpIV).

I know there was a large change in your powertrain (new turbo) but did it consume 1 qt/ 4k miles on GC?
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Old 09-11-2009, 05:34 AM   #9
bluesubie
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It is primarily ester based, but how much is just a guess since Amsoil won't give out that info. From what I understand, an oil has to be mainly ester to be able to be a 0 grade.

During my last OCI before my turbo change, I consumed 1 qt of GC in 7,500 miles and before that I never consumed any. I've used GC since 2005 and Motul 8100 5W-30 was the only other oil that I used. That was winter '06/'07. Consumed only 1/4 qt. with that.

-Dennis
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Old 09-11-2009, 04:38 PM   #10
RonJitsu
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Quote:
Originally Posted by bluesubie View Post
Ron - I can't believe that you don't have consumption with SSO, especially now that you upgraded your turbo. Maybe it's because you stuck with Amsoil from the beginning.
That could very well be it.

I have two of my friends running SSO (02 WRX & 05 WRX).
They both had ~80-100K miles before switching to the SSO.
The 05 consumed 2 qts over the course of his first OCI which was ~14K miles.
The 02 consumed about one quart over a 10K OCI.

Both of them stuck with the SSO since then and consumption has slowed to zero since...


I have no complaints of consumption issues as you know. But like you mentioned, I've been running Amsoil ASL or SSO since it was brand new.
My compression is 150 across the board and everything seems healthy overall. (even with the 20G turbo)
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