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Old 11-10-2008, 09:49 PM   #1
bluesubie
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Join Date: Jan 2000
Chapter/Region: Tri-State
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04 FXT

Forester Amsoil SSO 0W-30 used oil analysis, 7,988 miles

UOA by Oil Analyzers Inc.

Driving conditions: 7 mile daily trips; driving on the beach; several days of 100F+ temps (including one week vacation in SC in June with heavy load); towed a guesstimated 1,400 pounds 200 miles to Rhode Island in Sep; no mods but spirited driving.

OEM turbo was replaced (with another OEM turbo) 50 miles into OCI due to excessive oil getting past the seals.

This is my first run on an Amsoil product and SSO is in there again for winter. Iím also now using an Amsoil oil filter.

The last Blackstone GC uoa numbers are below on the right.


Comments: Base number is below acceptable minimum; Sodium is at a MINOR level; Sodium sources: coolant (antifreeze), lube additive or supplement, and/or environmental contaminant; Your note [about the turbo] was taken into consideration; Lubricant and filter change acknowledged.

Equipment make: Subaru
Equipment model: 2.5L Turbo
Oil use interval: 7,988
Oil type & Grade: Amsoil SSO 0-W30
Make-up oil added: 1 qt. (last added 8 oz. 6,322 into OCI)
Miles on unit: 74,029
Air filter: Amsoil Ea panel filter
Oil filter: OEM Tokyo Roki

Overall severity of report = 3 Abnormal

(zero values omitted)
Iron 11 12
Aluminum 3 4
Copper 6 7
Lead 4 5
Silicon 11 14
Sodium 90 10
Potassium 2 2
Molybdenum 1 2
Boron 7 2
Magnesium 17 587
Calcium 3423 1812
Phosphorus 677 873
Zinc 755 1106

Lube chg Y
Filter chg Y
Fuel <.5%
Soot <.1%
Water <.1%
Vis @ 100C: 9.6
TBN 4.01
Oxidation 38
Nitration 27

Given my driving conditions and the fact that I had a new turbo installed, I thought the oil held up well. It did shear a bit, but remained a 30 grade. I presume the sodium is from some coolant when the turbo was replaced.

-Dennis
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Old 11-10-2008, 10:07 PM   #2
bulwnkl
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Nice-looking report, bluesubie. Congrats on moving to the Ams oil filter <jab>

Happen to know what the baseline Oxidation and nitration numbers for this oil are?
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Old 11-10-2008, 10:12 PM   #3
bluesubie
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Quote:
Originally Posted by bulwnkl View Post
Nice-looking report, bluesubie. Congrats on moving to the Ams oil filter <jab>

Happen to know what the baseline Oxidation and nitration numbers for this oil are?


No, I don't know oxidation and nitration numbers. There's a VOA on bitog but it doesn't list them.

-Dennis
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Old 11-11-2008, 12:01 PM   #4
bulwnkl
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I was thinking I had them (at least the oxi #), but I can't find them. I was thinking that SSO's oxidation baseline was a little higher than one sees with something like Pennzoil yellow-bottle, so if I'm remembering that correctly, your number looks quite good. This nitration seems a little high, but I probably don't remember the baseline range right at all. IF the number is indeed high, that would mean you should change/clean your air filter, check/clean/replace PCV valve, check/replace spark plugs... general tune-up things to improve combustion efficiency. Like I said, I probably don't remember it even close to right.
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Old 11-11-2008, 02:41 PM   #5
bluesubie
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I installed a new Amsoil air filter at the beginning of this OCI and right before that I had the PCV valve changed, and plugs and fuel filter replaced.

I actually expected this uoa to look worse with replacing the turbo and my severe conditions. 11 is the lowest that my Si has ever been.

-Dennis
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Old 11-11-2008, 07:03 PM   #6
surowrxa
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Quote:
Originally Posted by bluesubie View Post
UOA by Oil Analyzers Inc.

OEM turbo was replaced (with another OEM turbo) 50 miles into OCI due to excessive oil getting past the seals.
Never heard of Oil Analyzers, please elaborate on your choice. I'm guessing bitog influence.

Same here (turbo seals) on a '05 WRX, but my UOA from the oil that was in there during the "excessive oil getting past the seals" time period was bad. The lead was very high.

How did you catch the problem? My intercooler was leaking oil out of the y-pipe area. Car was stock, never tracked, and was rarely driven hard. I was disappointed to say the least. After the new turbo was installed (under warranty), I traded it on a Legacy.
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Old 11-11-2008, 09:29 PM   #7
bulwnkl
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Good man, Dennis. Hope your next run is even better.
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Old 11-11-2008, 09:44 PM   #8
bluesubie
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Quote:
Originally Posted by surowrxa View Post
Never heard of Oil Analyzers, please elaborate on your choice. I'm guessing bitog influence.

Same here (turbo seals) on a '05 WRX, but my UOA from the oil that was in there during the "excessive oil getting past the seals" time period was bad. The lead was very high.

How did you catch the problem? My intercooler was leaking oil out of the y-pipe area. Car was stock, never tracked, and was rarely driven hard. I was disappointed to say the least. After the new turbo was installed (under warranty), I traded it on a Legacy.
Oil Analyzers is owned by or affiliated with Amsoil. You get more for your money than Blackstone since the price includes TBN, Oxidation, and Nitration.

I caught the problem because of intermittent smoke from around the turbo. It first started in the summer of '07 while in NC. I also got blue smoke out the tail pipe around that time. The dealer checked when I returned but didn't see anything. It would come back off and on again and I asked the dealer check it again and they still couldn't find anything. It was only burning a small amount of oil and nothing ever showed up on a uoa.

I kept getting more frequent smoke and I asked the dealer to look at the turbo. They agreed (although it never smoked when I was there) and they found oil going past the seals. It was replaced under warranty and I'm planning to keep her for a while.

-Dennis

Last edited by bluesubie; 11-11-2008 at 09:56 PM.
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Old 11-12-2008, 08:09 AM   #9
surowrxa
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'08 Legacy

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Quote:
Originally Posted by bluesubie View Post
Oil Analyzers is owned by or affiliated with Amsoil. You get more for your money than Blackstone since the price includes TBN, Oxidation, and Nitration.
Thanks for the answer.

Your blue smoke sounds more like seals than mine. I think the Y-pipe was leaking air causing boost problems that killed the turbo (and consequently some internals). I also had very little oil lost. If nothing showed up on a UOA out of the ordinary I would have kept mine too.


Great UOA this time Dennis...thanks for showing us what you find with these oils and your turbo Subaru.
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Old 11-15-2008, 04:28 AM   #10
RonJitsu
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Quote:
Originally Posted by bluesubie View Post
Iím also now using an Amsoil oil filter.
FINALLY!!

Dennis, seems that the SSO performed well, given the conditions...

Glad to hear that your running it again for winter, I cant wait to see the next UOA. It should look fabulous, provided you dont have any more engine/turbo work done...
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