2007 WRX Mobil 0w-40 UOA

[Ringe]

Hey guys,

This one is a little bit of an old sample, but I finally sent it out for the community.

 

[Ringe]

Was still Stage 1 with stock intake on this oil. Really happy with the viscosity and TBN; not sure what's up with the high copper wear in my engine. See my other thread for the trend...

 

[Clevy]

I read your other thread. Is this car equipped with an oil cooler. The copper readings are high in all your uoa. Where else could the copper be coming from. Since its consistently elevated it could very well be that your particular engine is just wearing this way,as the copper trend is indicating or it could be a problem.
I'm not familiar with this engine group so I cannot say for sure.
Are there other uoa for this type engine in the forum. If so perhaps start there and see if its common with other engines of this type.

 

[EddieCairns]

8 to 20 ppm for copper is not unusual in the pre 2010 Subaru engines with less than 100k miles

 

[Ringe]

Originally Posted By: Clevy
I read your other thread. Is this car equipped with an oil cooler. The copper readings are high in all your uoa. Where else could the copper be coming from. Since its consistently elevated it could very well be that your particular engine is just wearing this way,as the copper trend is indicating or it could be a problem.
I'm not familiar with this engine group so I cannot say for sure.
Are there other uoa for this type engine in the forum. If so perhaps start there and see if its common with other engines of this type.


Originally Posted By: EddieCairns
8 to 20 ppm for copper is not unusual in the pre 2010 Subaru engines with less than 100k miles


Good to know, thanks guys.

Yes, there is an oil cooler built into the radiator.

Also, I will post these in code for future reference so they don't get lost...

 

[Ringe]

Code:
OIL M5w40 M5w40 M0w40 M0w30

MILES IN USE 6.3k 6k 4.3k 3.5k

MILES 97k 86k 29k 21k

SAMPLE TAKEN 02/17/13 08/11/12 11/29/08 05/17/08



ALUMINUM 3 3 3 3

CHROMIUM 1 0 1 1

IRON 11 8 11 14

COPPER 7 26 12 36

LEAD 1 2 1 5

TIN 0 0 0 0

MOLYBDENUM 31 16 83 96

NICKEL 0 0 1 1

MANGANESE 0 0 3 1

SILVER 0 0 0 0

TITANIUM 0 4 0 0

POTASSIUM 0 3 0 1

BORON 47 23 148 46

SILICON 7 6 16 19

SODIUM 13 71 11 5

CALCIUM 1452 1378 3142 2328

MAGNESIUM 661 736 16 12

PHOSPHORUS 904 924 878 643

ZINC 1084 1087 1017 767

BARIUM 0 0 0 0







SUS VIS 210ºF 67.0 66.2 67.1 57.1

cSt @ 212ºF 12.16 11.93 12.17 9.40

FLASHPOINT ºF 470 400 425 360

FUEL %
ANTIFREEZE % 0.0 ? 0.0 0.0

WATER 0.0 0.0 0.0 0.0

INSOLUBLES 0.3 0.3 0.2 0.3

TBN 2.2 2.1 4.9 3.6

 

[bluesubie]

Oil cooler in the radiator for a 2007?

-Dennis

 

[Ringe]

Originally Posted By: bluesubie
Oil cooler in the radiator for a 2007?

-Dennis


Think so; either than or external. I haven't looked closely to be honest.