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2017 WRX STI: Motul X-clean EFE - 5,000 miles #4784224
06/11/18 07:16 PM
06/11/18 07:16 PM
Joined: Oct 2016
Posts: 38
Florida
Tiir Offline OP
Tiir  Offline OP

Joined: Oct 2016
Posts: 38
Florida
Motul X-clean 5w-30 EFE fill.




2017 WRX STI - Sold
2017 ES300h - Sold

2016 Lexus GS F
Re: 2017 WRX STI: Motul X-clean EFE - 5,000 miles [Re: Tiir] #4784236
06/11/18 07:28 PM
06/11/18 07:28 PM
Joined: Jun 2016
Posts: 4,672
MN
oil_film_movies Offline
oil_film_movies  Offline

Joined: Jun 2016
Posts: 4,672
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.

Re: 2017 WRX STI: Motul X-clean EFE - 5,000 miles [Re: Tiir] #4784565
06/12/18 06:58 AM
06/12/18 06:58 AM
Joined: Dec 2017
Posts: 4,505
SE British Columbia, Canada
Snagglefoot Offline
Snagglefoot  Offline

Joined: Dec 2017
Posts: 4,505
SE British Columbia, Canada
For what it’s worth that is a very low iron number, down at 1 ppm/ 1000 miles. Where the other checks with the same Motul oil?


If you want the job done right......do it yourself.
Re: 2017 WRX STI: Motul X-clean EFE - 5,000 miles [Re: Tiir] #4784694
06/12/18 09:18 AM
06/12/18 09:18 AM
Joined: Jan 2018
Posts: 123
Samara, Russia
Gubkin Offline
Gubkin  Offline

Joined: Jan 2018
Posts: 123
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

Re: 2017 WRX STI: Motul X-clean EFE - 5,000 miles [Re: Gubkin] #4784713
06/12/18 09:32 AM
06/12/18 09:32 AM
Joined: Dec 2005
Posts: 11,504
Upper Midwest
kschachn Online content
kschachn  Online Content

Joined: Dec 2005
Posts: 11,504
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, 242K
1996 Honda Accord, 277K
1999 Toyota Sienna, 418K
2000 Toyota ECHO, 281K
Re: 2017 WRX STI: Motul X-clean EFE - 5,000 miles [Re: Tiir] #4784735
06/12/18 10:00 AM
06/12/18 10:00 AM
Joined: Jan 2018
Posts: 123
Samara, Russia
Gubkin Offline
Gubkin  Offline

Joined: Jan 2018
Posts: 123
Samara, Russia

Re: 2017 WRX STI: Motul X-clean EFE - 5,000 miles [Re: Tiir] #4784746
06/12/18 10:07 AM
06/12/18 10:07 AM
Joined: Sep 2015
Posts: 2,626
Malaysia
zeng Offline
zeng  Offline

Joined: Sep 2015
Posts: 2,626
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.

Last edited by zeng; 06/12/18 10:12 AM.
Re: 2017 WRX STI: Motul X-clean EFE - 5,000 miles [Re: Gubkin] #4784786
06/12/18 11:10 AM
06/12/18 11:10 AM
Joined: Aug 2003
Posts: 2,348
NJ
bluesubie Offline
bluesubie  Offline

Joined: Aug 2003
Posts: 2,348
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

Last edited by bluesubie; 06/12/18 11:11 AM.

'04 Subaru Forester 2.5XT
Castrol Edge 0W-40
Re: 2017 WRX STI: Motul X-clean EFE - 5,000 miles [Re: zeng] #4784788
06/12/18 11:15 AM
06/12/18 11:15 AM
Joined: Apr 2016
Posts: 2,045
Oregon
1JZ_E46 Offline
1JZ_E46  Offline

Joined: Apr 2016
Posts: 2,045
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.

Last edited by 1JZ_E46; 06/12/18 11:18 AM.

2019 Tesla Model 3 SR+
2016 Countryman S: Castrol 0W-40
Re: 2017 WRX STI: Motul X-clean EFE - 5,000 miles [Re: Gubkin] #4785143
06/12/18 06:29 PM
06/12/18 06:29 PM
Joined: Dec 2005
Posts: 11,504
Upper Midwest
kschachn Online content
kschachn  Online Content

Joined: Dec 2005
Posts: 11,504
Upper Midwest
What is the TAN here?


1994 BMW 530i, 242K
1996 Honda Accord, 277K
1999 Toyota Sienna, 418K
2000 Toyota ECHO, 281K
Re: 2017 WRX STI: Motul X-clean EFE - 5,000 miles [Re: 1JZ_E46] #4785163
06/12/18 06:48 PM
06/12/18 06:48 PM
Joined: Sep 2015
Posts: 2,626
Malaysia
zeng Offline
zeng  Offline

Joined: Sep 2015
Posts: 2,626
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.

Re: 2017 WRX STI: Motul X-clean EFE - 5,000 miles [Re: zeng] #4789145
06/17/18 12:42 PM
06/17/18 12:42 PM
Joined: Apr 2016
Posts: 2,045
Oregon
1JZ_E46 Offline
1JZ_E46  Offline

Joined: Apr 2016
Posts: 2,045
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.


2019 Tesla Model 3 SR+
2016 Countryman S: Castrol 0W-40
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