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#4784224 - 06/11/18 07:16 PM 2017 WRX STI: Motul X-clean EFE - 5,000 miles
Tiir Offline


Registered: 10/26/16
Posts: 34
Loc: Florida
Motul X-clean 5w-30 EFE fill.


_________________________
2017 WRX STI
2017 ES300h

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#4784236 - 06/11/18 07:28 PM Re: 2017 WRX STI: Motul X-clean EFE - 5,000 miles [Re: Tiir]
oil_film_movies Offline


Registered: 06/13/16
Posts: 2559
Loc: MN
Copper is probably from the oil cooler. Its been seen a lot on WRX engines. The other possible source is the crank bearings, yet it just seems unlikely here.

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#4784565 - 06/12/18 06:58 AM Re: 2017 WRX STI: Motul X-clean EFE - 5,000 miles [Re: Tiir]
Snagglefoot Offline


Registered: 12/31/17
Posts: 1713
Loc: Alberta
For what itís worth that is a very low iron number, down at 1 ppm/ 1000 miles. Where the other checks with the same Motul oil?

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#4784694 - 06/12/18 09:18 AM Re: 2017 WRX STI: Motul X-clean EFE - 5,000 miles [Re: Tiir]
Gubkin Offline


Registered: 01/04/18
Posts: 12
Loc: Samara, Russia
"TBN is still good at 2.2. Try 7000 miles"
Crazy lab! )))))))

It's mean that TBN > TAN
necessary decrease interval to 4000 miles

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#4784713 - 06/12/18 09:32 AM Re: 2017 WRX STI: Motul X-clean EFE - 5,000 miles [Re: Gubkin]
kschachn Online   content


Registered: 12/26/05
Posts: 9393
Loc: Upper Midwest
What?

Originally Posted By: Gubkin
"TBN is still good at 2.2. Try 7000 miles"
Crazy lab! )))))))

It's mean that TBN > TAN
necessary decrease interval to 4000 miles
_________________________
1994 BMW 530i, 227K
1996 Honda Accord, 262K
1999 Toyota Sienna, 394K
2000 Toyota ECHO, 267K

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#4784735 - 06/12/18 10:00 AM Re: 2017 WRX STI: Motul X-clean EFE - 5,000 miles [Re: Tiir]
Gubkin Offline


Registered: 01/04/18
Posts: 12
Loc: Samara, Russia

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#4784746 - 06/12/18 10:07 AM Re: 2017 WRX STI: Motul X-clean EFE - 5,000 miles [Re: Tiir]
zeng Offline


Registered: 09/01/15
Posts: 2188
Loc: Malaysia
Very good metal wear rates.
Cu and (part of) Al likely comes from cooler, not bearing.
This C3 oil of TBN 7.8 drops to 2.2 over 5100 miles, which I interprete as good TBN retention.
I won't look at TAN , if any, and agree with BStone OCI could be extended further to 7000 miles or probably beyond.

Edit:The test of the pudding is in the eating, which in this case refers to (the very good) Fe wear of 5 ppm over 5100 miles.


Edited by zeng (06/12/18 10:12 AM)

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#4784786 - 06/12/18 11:10 AM Re: 2017 WRX STI: Motul X-clean EFE - 5,000 miles [Re: Gubkin]
bluesubie Offline


Registered: 08/04/03
Posts: 2279
Loc: NJ

I believe that Blackstone uses a different ASTM test than either of those (at least they used to).

https://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=221275

I doubt the OP will extend the interval very much. And probably not likely to go beyond 6k miles which is Subaru of America's recommendation unless Blackstone will cover the Powertrain Warranty. smile2


Edited by bluesubie (06/12/18 11:11 AM)
_________________________
'04 Subaru Forester 2.5XT
Castrol Edge 0W-40

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#4784788 - 06/12/18 11:15 AM Re: 2017 WRX STI: Motul X-clean EFE - 5,000 miles [Re: zeng]
1JZ_E46 Offline


Registered: 04/04/16
Posts: 1224
Loc: Oregon
Originally Posted By: zeng
Very good metal wear rates.
Cu and (part of) Al likely comes from cooler, not bearing.
This C3 oil of TBN 7.8 drops to 2.2 over 5100 miles, which I interprete as good TBN retention.
I won't look at TAN , if any, and agree with BStone OCI could be extended further to 7000 miles or probably beyond.

Edit:The test of the pudding is in the eating, which in this case refers to (the very good) Fe wear of 5 ppm over 5100 miles.


Wear metals ppm is only a piece of the story. You will not see deposit formation in a UOA, which you get from low TBN or where TAN is higher than TBN.


Edited by 1JZ_E46 (06/12/18 11:18 AM)
_________________________
2007 BMW X5 4.8i, 105K: Castrol EDGE 0W-40, Mann
2012 Mini Cooper, 45K: Castrol EDGE 0W-30, Mann

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#4785143 - 06/12/18 06:29 PM Re: 2017 WRX STI: Motul X-clean EFE - 5,000 miles [Re: Gubkin]
kschachn Online   content


Registered: 12/26/05
Posts: 9393
Loc: Upper Midwest
What is the TAN here?
_________________________
1994 BMW 530i, 227K
1996 Honda Accord, 262K
1999 Toyota Sienna, 394K
2000 Toyota ECHO, 267K

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#4785163 - 06/12/18 06:48 PM Re: 2017 WRX STI: Motul X-clean EFE - 5,000 miles [Re: 1JZ_E46]
zeng Offline


Registered: 09/01/15
Posts: 2188
Loc: Malaysia
Originally Posted By: 1JZ_E46
Originally Posted By: zeng
Very good metal wear rates.
Cu and (part of) Al likely comes from cooler, not bearing.
This C3 oil of TBN 7.8 drops to 2.2 over 5100 miles, which I interprete as good TBN retention.
I won't look at TAN , if any, and agree with BStone OCI could be extended further to 7000 miles or probably beyond.

Edit:The test of the pudding is in the eating, which in this case refers to (the very good) Fe wear of 5 ppm over 5100 miles.


Wear metals ppm is only a piece of the story. You will not see deposit formation in a UOA, which you get from low TBN or where TAN is higher than TBN.

Deposit formation,contents of Na,Ca,Mg etc, sludge,varnish,low TBN , high TAN,residual [email protected]*C, fuel dilution % etc are merely/strictly noises.

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#4789145 - 06/17/18 12:42 PM Re: 2017 WRX STI: Motul X-clean EFE - 5,000 miles [Re: zeng]
1JZ_E46 Offline


Registered: 04/04/16
Posts: 1224
Loc: Oregon
Originally Posted By: zeng
Deposit formation,contents of Na,Ca,Mg etc, sludge,varnish,low TBN , high TAN,residual [email protected]*C, fuel dilution % etc are merely/strictly noises.


Respectfully disagree. What a dense statement.
_________________________
2007 BMW X5 4.8i, 105K: Castrol EDGE 0W-40, Mann
2012 Mini Cooper, 45K: Castrol EDGE 0W-30, Mann

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