E90Post
 


MINHS Auto Care Center
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Why is Oil "Blackish" in less than 1000 miles



Reply
 
Thread Tools Search this Thread
      05-01-2014, 01:01 PM   #1
007_e350
Major
United_States
13

 
007_e350's Avatar
 
Drives: 335i 2008 <Cobb> / x5d
Join Date: May 2013
Location: Chicago


Posts: 1,112
iTrader: (2)

Why is Oil "Blackish" in less than 1000 miles

understood turbos cooks the heck out of it but it should still look honeyish for 2500 miles no ?
Appreciate 0
      05-01-2014, 01:06 PM   #2
jadnashuanh
Captain
United_States
8

 
Drives: 535iGT x-drive; i3 BEV
Join Date: May 2010
Location: USA


Posts: 866
iTrader: (0)

No...the color of the oil has little to do with its lubricating properties. One of the big things an oil does is hold things in suspension, and if they are big enough, the filter will take them out as the oil passes through. Especially with a turbocharged engine, things can get into the oil fairly rapidly, but until the additives wear out and can't do their job, the color of it is mostly irrelevant. Now, if it spelled burnt or felt gritty, that would be a totally different issue, but color? Not an issue. Now, with a diesel engine, it will get looking nasty quicker, but still works fine.
Appreciate 0
      05-01-2014, 01:11 PM   #3
AdamN52
Private First Class
Canada
2

 
Drives: 2007 328xi (E90)
Join Date: Dec 2013
Location: Toronto


Posts: 163
iTrader: (0)

I would think it should turn dark pretty quickly. Don't sweat it.
Appreciate 0
      05-01-2014, 01:20 PM   #4
007_e350
Major
United_States
13

 
007_e350's Avatar
 
Drives: 335i 2008 <Cobb> / x5d
Join Date: May 2013
Location: Chicago


Posts: 1,112
iTrader: (2)

Quote:
Originally Posted by jadnashuanh View Post
No...the color of the oil has little to do with its lubricating properties. One of the big things an oil does is hold things in suspension, and if they are big enough, the filter will take them out as the oil passes through. Especially with a turbocharged engine, things can get into the oil fairly rapidly, but until the additives wear out and can't do their job, the color of it is mostly irrelevant. Now, if it spelled burnt or felt gritty, that would be a totally different issue, but color? Not an issue. Now, with a diesel engine, it will get looking nasty quicker, but still works fine.
I've been changing at 4k past couple of times expecting to recover from the '11k interval' junk that previous owner was stuck to ... hows the idea of little sea foam before the oil change ?
Actually at the bmw westmont's parts department today I saw they're selling Amsoil Engine/ Transmission Flush - says put in 10 - 15 mins before oil change .. I was really surprized to see Amsoil in a BMW dealership

Last edited by 007_e350; 05-01-2014 at 01:28 PM.
Appreciate 0
      05-01-2014, 05:17 PM   #5
FCobra94
Major
14

 
FCobra94's Avatar
 
Drives: '07 E90 335i
Join Date: Dec 2011
Location: MD


Posts: 1,387
iTrader: (0)

End the speculation...send a sample to Blackstone.
__________________
'07 E90 335i - Automagic - Non-sport
Cobb AP|Alpina Flash|VRSF 7" FMIC|VRSF CP|TIAL BOV|cp-e DCI|Bilstein B6|E93 M3 FSB|SP Lowering Perches
Summer: Sonic Tuning ST100 - 18x8.5 ET35 - Conti DWS 245/40/18 - 10mm rear spacers
Winter: Style 159 - 17x8 ET34 - Michelin X-Ice Xi2 225/50/17 - 15mm rear spacers
Appreciate 0
      05-01-2014, 05:37 PM   #6
mankytron
Private
0

 
Drives: 335 coupe
Join Date: Mar 2014
Location: ontario canada


Posts: 65
iTrader: (0)

What oil are you using now?
Appreciate 0
      05-01-2014, 06:02 PM   #7
flexinator
Lieutenant
United_States
9

 
flexinator's Avatar
 
Drives: 2008 335xi coupe
Join Date: Oct 2007
Location: Syracuse, NY


Posts: 483
iTrader: (2)

Garage List
2008 335xi  [0.00]
Quote:
Originally Posted by 007_e350
Quote:
Originally Posted by jadnashuanh View Post
No...the color of the oil has little to do with its lubricating properties. One of the big things an oil does is hold things in suspension, and if they are big enough, the filter will take them out as the oil passes through. Especially with a turbocharged engine, things can get into the oil fairly rapidly, but until the additives wear out and can't do their job, the color of it is mostly irrelevant. Now, if it spelled burnt or felt gritty, that would be a totally different issue, but color? Not an issue. Now, with a diesel engine, it will get looking nasty quicker, but still works fine.
I've been changing at 4k past couple of times expecting to recover from the '11k interval' junk that previous owner was stuck to ... hows the idea of little sea foam before the oil change ?
Actually at the bmw westmont's parts department today I saw they're selling Amsoil Engine/ Transmission Flush - says put in 10 - 15 mins before oil change .. I was really surprized to see Amsoil in a BMW dealership
I use 10k intervals and send samples to blackstone, while my car was under warranty I did 15k intervals. I'm Fbo. Samples come back looking great at 75k miles... They are posted up here if you want to search...
Appreciate 0
      05-01-2014, 06:46 PM   #8
jadnashuanh
Captain
United_States
8

 
Drives: 535iGT x-drive; i3 BEV
Join Date: May 2010
Location: USA


Posts: 866
iTrader: (0)

If you have a car from say before 2000, you probably do want to change your oil fairly frequently...the state of the art in machine tools, computer controls, alloys and the actual oil itself available and used in today's vehicles means that those old 3K intervals for oil changes are a major waste of time and money on a new car unless it sits at idle all the time or maybe used on the track. Even in Germany, where you can, on occasion reach the rev limiter on the Autobahn, the longer timeframes work and the engines last. What your father had to do and his father before him had none of these advances in technology. Today's oil is so much better than even stuff from 5-years ago. On my last car, I regularly had the oil analyzed, and it easily lasted over 10K and that engine ran probably twice the average revs of the new one and had 30% less oil in the sump to work with.

The only way to know for sure is to have the oil tested, but it is DESIGNED to help keep the insides clean and hold the stuff in suspension. It's only when the stabilizers get used up and it cannot keep the pH in check, and the detergents can no longer hold any more crud in suspension that things start to get bad. The oil itself doesn't wear out...it's the additives. That's one reason why they can recycle the oil...super filter it to take out the crud, light refining to get rid of the metals and other contaminants, then put in a new dose of additives, and it's ready to go around again.

BMWs specify a very good oil, and have a decent filter, and a larger sump than most. SPend the money if you want, but unless a test comes back saying the oil is shot, using the factory recommended intervals for most people is not going to harm your engine or its performance.
Appreciate 0
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 01:50 AM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST