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Old 03-31-2012, 09:48 AM   #1
meebs
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Join Date: Dec 2000
Chapter/Region: NWIC
Location: Lake Tapps, WA
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2009 WRX Hatch
DGM

Thumbs up Shell Rotella T6 5K UOA Results 2009 WRX

I really just wanted to see where the car was at since I bought it. This was the second oil change. It was a leased WRX and so all work was done by the dealer up until I got it. No idea what they use in general for MY09's but it had a Castrol reminder sticker on it.

Oil Filter: Purolator Pure One 14612
Air Filter: Stock Subaru
Tune: Stock
All other parts stock; except factory SPT catback.
Miles on car: 50,130
Make up: 0.5 qt (only because the dipstick sucks on the EJ255. The blank side reads way higher than the stamped side, so I think I was 1/2 a quart under on my first change.)

No TBN test as I've done that before on my old car (MY04) and there was so much left that it's not something I would worry about with T6. Going to shoot for 6K OCI's as that seems to be what the previous owner was doing according to carfax, albeit not consistently.



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Old 03-31-2012, 12:18 PM   #2
bluesubie
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Nice report as always with RT6.

It's odd that they didn't comment at all on the sodium though. Presumably that's residual sodium from the Castrol since they use it as an additive in a lot of their oils. Magnesium is way off. Something's fishy. Zinc is low as well. Check this VOA:

http://www.bobistheoilguy.com/forums...92#Post2330292

-Dennis

Last edited by bluesubie; 03-31-2012 at 12:28 PM.
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Old 03-31-2012, 01:16 PM   #3
meebs
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Quote:
Originally Posted by bluesubie View Post
Nice report as always with RT6.

It's odd that they didn't comment at all on the sodium though. Presumably that's residual sodium from the Castrol since they use it as an additive in a lot of their oils. Magnesium is way off. Something's fishy. Zinc is low as well. Check this VOA:

http://www.bobistheoilguy.com/forums...92#Post2330292

-Dennis
Dennis - What exactly is fishy? Are you saying there's not much additive left based on magnesium and zinc numbers?

My magnesium result is higher than a 4k avg (306), at 590 which would tell me if virgin starts off at 1224, it's not that bad.

Zinc is at 903, slightly below the 931 4k avg, and not that far down from virgin 1252...



Edit: Found my old UOA from my MY04. Both magnesium and zinc were indeed way higher, 1161 and 1164 respectively; but this was back from October 09 which I think was the "old" formulation. My note on it says just Rotella T 5w40, not T6.

Last edited by meebs; 03-31-2012 at 01:25 PM. Reason: Old UOA info.
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Old 03-31-2012, 03:56 PM   #4
bluesubie
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Fishy as in too low. The averages are based on all uoa's for this engine regardless of what oil is used. You need to look at other RT6 uoa's here and on bitog to compare. T6 was only a branding change and not a reformulation. For the old formula it would have had to have been API SL/CI 4+. I recently linked an RT6 uoa from Subaruoutback.org where I noted that the additives looked to low. In that case, he had BS resample and the additive levels came back 10-20% higher.

-Dennis
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Old 03-31-2012, 04:16 PM   #5
meebs
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Quote:
Originally Posted by bluesubie View Post
Fishy as in too low. The averages are based on all uoa's for this engine regardless of what oil is used. You need to look at other RT6 uoa's here and on bitog to compare. T6 was only a branding change and not a reformulation. For the old formula it would have had to have been API SL/CI 4+. I recently linked an RT6 uoa from Subaruoutback.org where I noted that the additives looked to low. In that case, he had BS resample and the additive levels came back 10-20% higher.

-Dennis
Thanks for the clarification. My main concern was really metals as I didn't get a TBN test. I don't plan on going over a 6K OCI, so I won't worry too much! Chalk it up to "lab error" as in the example you cited above? Maybe I'll do another in UOA after 2 more OCI's just to see where it's at.
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Old 11-17-2012, 11:32 PM   #6
meebs
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Dennis - Looks like you were definitely right about this one, something must have been wrong with my previous sample. No idea what though. I do drain it out of a Fumoto valve, but I doubt that would affect anything. It's almost like they mixed mine up with someone else.

Iron shot way up... higher than average but not by much? Everything else looks more like Rotella. I'm still gun shy about a 6K OCI, and I know it's just mental.

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Old 11-17-2012, 11:55 PM   #7
eg33GC
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thanks for the info meebs!
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Old 11-18-2012, 11:53 AM   #8
bluesubie
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Quote:
Originally Posted by meebs
Dennis - Looks like you were definitely right about this one, something must have been wrong with my previous sample. No idea what though. I do drain it out of a Fumoto valve, but I doubt that would affect anything. It's almost like they mixed mine up with someone else.

Iron shot way up... higher than average but not by much? Everything else looks more like Rotella. I'm still gun shy about a 6K OCI, and I know it's just mental.
Iron is fine so don't worry. I should start a virtual uoa company. Send me a list of mods, your driving habits, the oil you used, and how long you ran the oil and I'll send you "results" for $10.00. This is one reason I switched to oil analyzers inc. Much better bang for the buck (TBN, oxidation, antimony reading, nitration included for $22.45) and being an accredited lab is another.

http://oaitesting.com/

I would email Blackstone and ask why the results are so different. Are you absolutely sure the first uoa was on RT6? A Fumoto doesn't make that much of a difference.

-Dennis

Last edited by bluesubie; 11-18-2012 at 11:58 AM.
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Old 11-20-2012, 09:59 PM   #9
meebs
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2009 WRX Hatch
DGM

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Quote:
Originally Posted by bluesubie View Post
Iron is fine so don't worry. I should start a virtual uoa company. Send me a list of mods, your driving habits, the oil you used, and how long you ran the oil and I'll send you "results" for $10.00. This is one reason I switched to oil analyzers inc. Much better bang for the buck (TBN, oxidation, antimony reading, nitration included for $22.45) and being an accredited lab is another.

http://oaitesting.com/

I would email Blackstone and ask why the results are so different. Are you absolutely sure the first uoa was on RT6? A Fumoto doesn't make that much of a difference.

-Dennis
You certainly could start your own UOA consulting company. You always seem helpful and not condescending like other internet oil experts tend to be. While I haven't put a ton of effort into it; I've always just wanted a basic cheat sheet on "what is good and what is bad". I can compare against averages, and search for other UOA's but always wonder... Ok, what are horrific iron, copper, aluminium, etc, levels?

I've been on RT6 since 45K miles, basically the first oil change since I got the car about a year ago so I'm sure that is what I sent them. It really seems like they goofed and ran someone else's sample on the first one doesn't it? I may try another UOA from Oil Analyizers in two more OCI's to see where iron is at. If 12 ppm isn't that bad even though it's a little above average then I'm not going to worry much though.

Thanks again for the info!
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Old 11-21-2012, 08:39 AM   #10
bluesubie
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Quote:
Originally Posted by meebs
While I haven't put a ton of effort into it; I've always just wanted a basic cheat sheet on "what is good and what is bad". I can compare against averages, and search for other UOA's but always wonder... Ok, what are horrific iron, copper, aluminium, etc, levels?
One thing to do is google high copper (or iron, lead, etc) WRX/STI uoa's and check out some of the results from bitog. Also spend time reading uoa's and other comments.
Check out this uoa:
http://www.bobistheoilguy.com/forums...Number=1341464

The problem though is figuring out who to believe (like with anything on the web). Blackstone may say your iron is high, but high iron isn't necessarily an indicator of wear.

http://www.bobistheoilguy.com/forums...2090404&page=1

Then there are oils made from ester base stocks (like Red Line) which may appear to show wear with the first uoa's, but they are actually cleaning your engine.

IMO, there is no excuse for missing something as obvious as Rotella showing additive levels as low as, or even lower, than a GF-5 Resource Conserving oil.

And this is a very good article about uoa's written by someone that has been in the lubricant industry since the 60's.

http://www.bobistheoilguy.com/used-oil-analysis/

Have a look through the uoa forum at bitog. There are lots of WRX uoa's there. If you want to get REALLY serious about uoa's it'll cost more than $30.
http://dysonanalysis.com/Dyson_Analysis/Welcome.html

-Dennis

Last edited by bluesubie; 11-21-2012 at 08:59 AM.
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