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

Al

Joined
Jun 8, 2002
Messages
19,341
Location
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
 
Last edited:

Al

Thread starter
Joined
Jun 8, 2002
Messages
19,341
Location
Elizabethtown, Pa
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.
 

Al

Thread starter
Joined
Jun 8, 2002
Messages
19,341
Location
Elizabethtown, Pa
Originally Posted By: Marco620
Is subaru 5w30 Synthetic? Good UOA : )
Yes. Its made by Idemitsu.
 

Al

Thread starter
Joined
Jun 8, 2002
Messages
19,341
Location
Elizabethtown, Pa
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:
Joined
Jun 8, 2006
Messages
5,447
Location
KC
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.
 

Al

Thread starter
Joined
Jun 8, 2002
Messages
19,341
Location
Elizabethtown, Pa
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.
 
Joined
May 1, 2012
Messages
2,805
Location
Indiana
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?
 
Joined
Aug 4, 2003
Messages
2,518
Location
NJ
Originally Posted By: webfors
3/4 quart in ~10k miles on a ej25 is *excellent* IMO. Great report!
approved -Dennis
 

Al

Thread starter
Joined
Jun 8, 2002
Messages
19,341
Location
Elizabethtown, Pa
Originally Posted By: Phishin
What is a WP hose?
The water pump has a short rubber discharge hose as I recall.
 
Top