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Old 04-07-2010, 05:11 PM   #1
eurospek
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4eat Stage 2 Protuned

Default Results of my Blackstone Oil Analysis

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Old 04-07-2010, 09:33 PM   #2
bluesubie
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Great uoa, especially for a Stage II IMO. Keep in mind though that Amsoil does not recommend going past 3,750 miles in a Subaru (and presumably a Saabaru) turbo.

-Dennis
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Old 04-07-2010, 10:47 PM   #3
eurospek
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Quote:
Originally Posted by bluesubie View Post
Great uoa, especially for a Stage II IMO. Keep in mind though that Amsoil does not recommend going past 3,750 miles in a Subaru (and presumably a Saabaru) turbo.

-Dennis
Where did you read that?
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Old 04-08-2010, 01:20 PM   #4
bluesubie
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Quote:
Originally Posted by eurospek View Post
Where did you read that?
When you key vehicle info into the product application guide. They just made it a blanket statement for all Subaru turbos, even though all engines are not affected. I entered a 2002 WRX and got the same thing as I did for my car. Although it doesn't actually come up when you key in a Saab 9-2X.

Quote:
SUBARU TURBO SPECIAL MESSAGE:
Subaru has published Service Bulletin # 02-103-07 that identifies a factory design related problem with premature clogging of the oil mesh screen located inside the oiling system that supplies the turbo charger on all model turbo charged cars. A clogged screen will result in oil starvation and turbo charger failure. Subaru has reduced their recommended oil drain interval in half, as a solution, from 7,500 miles to 3,750 miles (3-3/4 months) and requires the oil mesh screen to be inspected, and possibly serviced, at every oil change. With this Subaru factory related design issue, AMSOIL INC. therefore must recommend customers follow the new Subaru oil change interval of 3,750 miles or 3-3/4 months until Subaru resolves this issue.
-Dennis
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Old 04-08-2010, 04:05 PM   #5
gathermewool
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With an oil like Amsoil I wouldn't worry about sticking with the 3750 that Subaru now mandates for all turbo-charged engines - they now classify all turbos as severe service.

The 3750 mile change is based on two things, IMO: just about ANY current-API-spec'd oil will withstand 3750 miles, so this is a CYA for Subaru for those who use the cheapest bulk oil Jiffy Lube can provide; and, due to lower quality oil use over prolonged periods at extended drains, the clogging of the turbo oil feed screen causing turbo failures.
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Old 04-08-2010, 07:57 PM   #6
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The manufacturer of the engine oils that claim almost-hysterically-long-drain capability (up to 35,000 miles) is telling you not to go past 3,750 for a given engine (series). I'm not Sherlock Holmes, but I think that's what's called a clue. IMO, you'd better be listening.
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Old 11-21-2012, 05:44 PM   #7
eurospek
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Did another one recently. Here are the results.

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Old 11-22-2012, 08:59 AM   #8
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Wow nice results. Interesting to see the difference in the oil since it was reformulated. Lower zinc and boron, but just a bit more calcium and moly. This is probably why Amsoil doesn't submit their top line oils for API certification. They may reduce some metals like zinc, but do increase the other multi-functional additives like moly and calcium. The question is whether or not the increased additives (and presumably some that don't show up in a uoa) are enough to make up for the reduction in zinc?

-Dennis
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Old 11-22-2012, 12:40 PM   #9
eurospek
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Quote:
Originally Posted by bluesubie View Post
Wow nice results. Interesting to see the difference in the oil since it was reformulated. Lower zinc and boron, but just a bit more calcium and moly. This is probably why Amsoil doesn't submit their top line oils for API certification. They may reduce some metals like zinc, but do increase the other multi-functional additives like moly and calcium. The question is whether or not the increased additives (and presumably some that don't show up in a uoa) are enough to make up for the reduction in zinc?

-Dennis
So is that good or bad?
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Old 11-22-2012, 07:41 PM   #10
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it means that using amsoil is a waste of $$$

THAT is what amsoil is
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Old 11-22-2012, 07:43 PM   #11
eurospek
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Quote:
Originally Posted by Uncle Scotty View Post
it means that using amsoil is a waste of $$$

THAT is what amsoil is
I thought about switching to cheaper, readily available oil BUT my tuner shop advised against switching oils in a higher mileage engine (good path for a spun bearing they said) and to stick with what I'm running.
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Old 11-22-2012, 09:20 PM   #12
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Quote:
Originally Posted by eurospek View Post
I thought about switching to cheaper, readily available oil BUT my tuner shop advised against switching oils in a higher mileage engine (good path for a spun bearing they said) and to stick with what I'm running.

yer tuner dont know anything about oil

the rotella t6 will do ya just fine
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Old 11-22-2012, 09:43 PM   #13
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Quote:
Originally Posted by Uncle Scotty View Post
yer tuner dont know anything about oil

the rotella t6 will do ya just fine
That's a big ol' +1

Last edited by gathermewool; 11-22-2012 at 09:49 PM.
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Old 11-22-2012, 11:30 PM   #14
bluesubie
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The reduction in zinc may be fine since other anti-wear additives have been increased. It's just not something that a couple of random uoa's will tell you.

If I ever ran an Amsoil 30 weight again, it would be their Series 3000 HDD 5W-30. High HTHS, high ZDDP, and a high TBN than could easily go 7,500 miles in your application IMO.

http://www.bobistheoilguy.com/forums...Number=2583966

-Dennis
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