Scary rod bearing thread s85

Voltigeur · 08-11-2013, 02:28 PM

Quote:

Originally Posted by Longwong

Can someone summarize what we have learned here for us mere mortals? What my take away is

1. The issue is bmw made the clearence for oil to properly lubricate the bearings so ridiculously small because speculation that they were doing it for noise reduction or increase in power? At the expense of not having enough clearence for the thick oil they recommend

2.Mahle recommends 5w30 with the clearences bmw is using. So why don't we all switch to 5w 30? Can someone explain the cost vs benefit of those who don't know how 5w 30 may hold up at 8k rpm?

3. No point to coated bearings for 2 reasons. First it may worsen the problem since the coating further reduces the clearences. Second even if not, it still does not fix the problem of under lubrication and the coated ones will fail as well

Thank you. I too am not highly educated in the area of engine tolerances and oils etc. Just a concerned owner who wants his M3 to last.

Quote:

Originally Posted by Longwong

So is there literally nothing anyone can do?

Honestly with this information I cannot see how anyone in their right mind would supercharge this car. I was going to but no way in hell now.

Any particular driving habits worse for bearing starvation? Is it a high rpm issue ...Can someone explain

ChrisK · 08-13-2013, 05:16 PM

I got my blackstone-labs report. All looks good - No LEAD!

2011 e92 M3
Stock Oil
Miles on the car: 18k
Miles on the oil: 6.3K

__________________________________________________ ___

AMPowerJ · 08-16-2013, 08:10 AM

This is a GREAT thread .... Since I am SC'd I am obviously concerned about this. My car has less than 7K miles on it and I tracked it once so far. Based on everything I have read I think I am going to run M1 OW-40 normally and then go back to TWS 10W-60 for track days. Seems like the best option without changing the clearances right now.

W/// · 08-16-2013, 08:16 AM

Quote:

Originally Posted by AMPowerJ

This is a GREAT thread .... Since I am SC'd I am obviously concerned about this. My car has less than 7K miles on it and I tracked it once so far. Based on everything I have read I think I am going to run M1 OW-40 normally and then go back to TWS 10W-60 for track days. Seems like the best option without changing the clearances right now.

Yea not a bad idea at all. I plan on changing my oil in the next couple of weekends, especially now that the weather is cooling down. My 12ish miles commute this morning, in 70 degrees weather, my M didn't oil temp didn't even reach 210.

kawasaki00 · 08-16-2013, 08:59 AM

Quote:

Originally Posted by W///

Yea not a bad idea at all. I plan on changing my oil in the next couple of weekends, especially now that the weather is cooling down. My 12ish miles commute this morning, in 70 degrees weather, my M didn't oil temp didn't even reach 210.

We went to dinner last night and it was about 68 degrees. Oil temp was 185 and water was 170 on the interstate cruising at 80.

W/// · 08-16-2013, 09:46 AM

Quote:

Originally Posted by kawasaki00

We went to dinner last night and it was about 68 degrees. Oil temp was 185 and water was 170 on the interstate cruising at 80.

Maybe it's time to tape some cardboard on the kidney grilles!

Compared to 10W-60, have you noticed if the 0W-40 warms up significantly faster? Or not really?

AMPowerJ · 08-16-2013, 09:51 AM

I guess one good thing about the SC in relation to heating up the oil is that it appears (based on the OEM gauge) that oil temps run 10-15 degrees higher all the time than when my motor was NA.

kawasaki00 · 08-16-2013, 10:00 AM

Quote:

Originally Posted by W///

Maybe it's time to tape some cardboard on the kidney grilles!

Compared to 10W-60, have you noticed if the 0W-40 warms up significantly faster? Or not really?

Seems like it warms to 175ish faster for sure. Usually when I leave my house I have to get all the way to the interstate before it is hot. (5 miles)
It is up to temp probably a mile sooner with the 0-40. Not a huge difference but everything helps. One thing I have noticed since installing the gauges is how cool the water temp is on this car under normal conditions. It is constantly 165-175 while moving. I know that is a different topic but just a observation.

W/// · 08-16-2013, 12:28 PM

Quote:

Originally Posted by kawasaki00

Seems like it warms to 175ish faster for sure. Usually when I leave my house I have to get all the way to the interstate before it is hot. (5 miles)
It is up to temp probably a mile sooner with the 0-40. Not a huge difference but everything helps. One thing I have noticed since installing the gauges is how cool the water temp is on this car under normal conditions. It is constantly 165-175 while moving. I know that is a different topic but just a observation.

Good to know, thanks. The problem with my commute is that it's mostly rural followed by highway. Very little time stopped at a red light.

In the middle of the winter, that gauge is almost impossible to get to 210 haha. But at least Mobil1 will help. Looking forward to not pay ///M taxes on 10W60 anymore!

signes · 08-16-2013, 02:09 PM

Quote:

Originally Posted by AMPowerJ

This is a GREAT thread .... Since I am SC'd I am obviously concerned about this. My car has less than 7K miles on it and I tracked it once so far. Based on everything I have read I think I am going to run M1 OW-40 normally and then go back to TWS 10W-60 for track days. Seems like the best option without changing the clearances right now.

That's potentially a lot of oil... BTW, what happened to our E90?

Longwong · 08-16-2013, 03:51 PM

Or just use M1 0w50 race oil or Torco 5w50 than no need to change the oil. 0w40 is still a whopping mistake if you ask me. Unless you granny drive your m3 than almost any oil is fine but if you drive the thing hard and take it to redline, I would cringe at 0w40 being in the engine.

Also looks like 10w60 does not shear down to a 50

Trip3's · 08-16-2013, 03:57 PM

Quote:

Originally Posted by Longwong

Or just use M1 0w50 race oil or Torco 5w50 than no need to change the oil. 0w40 is still a whopping mistake if you ask me. Unless you granny drive your m3 than almost any oil is fine but if you drive the thing hard and take it to redline, I would cringe at 0w40 being in the engine.

Also looks like 10w60 does not shear down to a 50

Can you state your qualifications again?

1MOREMOD · 08-16-2013, 04:13 PM

Yeah let's play!

///M Power-Belgium · 08-16-2013, 04:22 PM

Yep...we need to get an oil mine

1MOREMOD · 08-16-2013, 04:23 PM

How about a monkey screwing a football?

1MOREMOD · 08-16-2013, 04:30 PM

Close enough, I'm embarrassed also.

MilehighM3 · 08-16-2013, 11:02 PM

Quote:

Originally Posted by signes

That's potentially a lot of oil... BTW, what happened to our E90?

Voltigeur · 08-17-2013, 11:00 PM

Quote:

Originally Posted by ChrisK

I got my blackstone-labs report. All looks good - No LEAD!
2011 e92 M3
Stock Oil
Miles on the car: 18k
Miles on the oil: 6.3K

Cool. Just got the kit; def a good tip I got from reading this long thread

08-13-2013, 05:16 PM	#508
ChrisK Major General 4449 Rep 7,594 Posts Drives: '19 M2C Join Date: Jun 2007 Location: Chicagoland iTrader: (7) Garage List 2019 BMW M2C [7.00] 2015 Porsche Macan S [0.00]	I got my blackstone-labs report. All looks good - No LEAD! 2011 e92 M3 Stock Oil Miles on the car: 18k Miles on the oil: 6.3K __________________________________________________ ___ Attached Images __________________ www.ReTuneTheDeTune.com 2019 M2 Competition (Sunset Orange) Last edited by ChrisK; 08-15-2013 at 09:19 AM..
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08-16-2013, 08:10 AM	#509
AMPowerJ One mod leads to another ... 416 Rep 2,900 Posts Drives: 2014 F10 M5 Join Date: Apr 2008 Location: Blythewood, SC iTrader: (10)	This is a GREAT thread .... Since I am SC'd I am obviously concerned about this. My car has less than 7K miles on it and I tracked it once so far. Based on everything I have read I think I am going to run M1 OW-40 normally and then go back to TWS 10W-60 for track days. Seems like the best option without changing the clearances right now. __________________ Current: 2014 F10 M5 Previous: 2015 F80 M3, 2013 E92 M3, 2013 F10 M5, 2009 E90 M3, 1998 E36 M3
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08-16-2013, 09:51 AM	#513
AMPowerJ One mod leads to another ... 416 Rep 2,900 Posts Drives: 2014 F10 M5 Join Date: Apr 2008 Location: Blythewood, SC iTrader: (10)	I guess one good thing about the SC in relation to heating up the oil is that it appears (based on the OEM gauge) that oil temps run 10-15 degrees higher all the time than when my motor was NA. __________________ Current: 2014 F10 M5 Previous: 2015 F80 M3, 2013 E92 M3, 2013 F10 M5, 2009 E90 M3, 1998 E36 M3
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08-16-2013, 03:51 PM	#517
Longwong Banned 38 Rep 370 Posts Drives: e92 m3 catless Join Date: Jun 2013 Location: USA iTrader: (0)	Or just use M1 0w50 race oil or Torco 5w50 than no need to change the oil. 0w40 is still a whopping mistake if you ask me. Unless you granny drive your m3 than almost any oil is fine but if you drive the thing hard and take it to redline, I would cringe at 0w40 being in the engine. Also looks like 10w60 does not shear down to a 50
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08-16-2013, 04:13 PM	#519
1MOREMOD - 11817 Rep 23,187 Posts Drives: Race car-> Join Date: Mar 2009 Location: check your mirrors iTrader: (5)	Yeah let's play!
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08-16-2013, 04:22 PM	#520
///M Power-Belgium General 63209 Rep 24,650 Posts Drives: ///M3-E92-DCT Silverstone II Join Date: Jul 2012 Location: Belgium iTrader: (0)	Yep...we need to get an oil mine __________________ "MAX VERSTAPPEN" IS THE 2021+2022+2023 F1 WORLD CHAMPION - #UnLeashTheLion BPM DEV-Tune & DCT Software-Tune & Servotronic & coding ///Alpine HID Angeleyes ///Oem.exhaust mod.
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08-16-2013, 04:23 PM	#521
1MOREMOD - 11817 Rep 23,187 Posts Drives: Race car-> Join Date: Mar 2009 Location: check your mirrors iTrader: (5)	How about a monkey screwing a football?
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08-16-2013, 04:30 PM	#522
1MOREMOD - 11817 Rep 23,187 Posts Drives: Race car-> Join Date: Mar 2009 Location: check your mirrors iTrader: (5)	Close enough, I'm embarrassed also.
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