08 Forester N/A, Subaru 5W-30, 9600 miles OCI

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Al

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Jun 8, 2002
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Elizabethtown, Pa
I think the report is great. The vehicle has 135K miles and had a head gasket job 8 months ago. One oil change was done before this run. I don't know how it could be better. I think I'll keep this beast.

Code:


Miles on oil 9600

Miles on unit 135,000

Makeup oil 3/4 quart



Al 3

Cr 0

Fe 5

Cu 1

Pb 0

Sn 0



Mo 132

B 39



Si 7

Na 4

K 3

Ca 1998

Mg 18

P 687

Zn 824



SUS (210F) 55.2 SUS

cSt. (100 C) 8.84 cSt.

Flashpoint 400F

Fuel < .5

Water 0.0

Insolubles % .2
 
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Originally Posted By: Bandito440
Lookin' good.
Have you done the timing belt and water pump?

Yea + all the idlers, new seals, t-Stat, the short WP hose in there. Subarus (pre 2011) become needy after 100K miles.
 
Originally Posted By: Marco620
Is subaru 5w30 Synthetic? Good UOA : )

Yes. Its made by Idemitsu.
 
Originally Posted By: badtlc
It should be good with that much make up oil.


A quart (actually closer to 3/4) has very little effect in 10K miles.
 
Last edited:
Originally Posted By: Al
Originally Posted By: badtlc
It should be good with that much make up oil.


A quart (actually closer to 3/4) has very little effect in 10K miles.


Oh yes it does. That is 20-25% difference in numbers.
 
Originally Posted By: badtlc
Originally Posted By: Al
Originally Posted By: badtlc
It should be good with that much make up oil.


A quart (actually closer to 3/4) has very little effect in 10K miles.


Oh yes it does. That is 20-25% difference in numbers.

Actually its closer to 10%. If you were to replace that oil say in the first 100 miles it would be close to 0% and if you did it at the very end it would be about 20% so it turns out (math wise) with continuous use and replacement its right smack in the middle or 10%. Just saying.
 
Hopefully a better idea of what's happening.

1_oilreports.aspx-page-001.jpg
 
Originally Posted By: Al
Originally Posted By: Bandito440
Lookin' good.
Have you done the timing belt and water pump?

Yea + all the idlers, new seals, t-Stat, the short WP hose in there. Subarus (pre 2011) become needy after 100K miles.


What is a WP hose?
 
Originally Posted By: webfors
3/4 quart in ~10k miles on a ej25 is *excellent* IMO.

Great report!

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-Dennis
 
Originally Posted By: Phishin

What is a WP hose?

The water pump has a short rubber discharge hose as I recall.
 
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