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E90/E91/E92/E93 (2006 - 2013)
The E9X is the 4th evolution of the BMW 3 series including a highly tuned twin turbo 335i variant pushing out 300hp and 300 ft. lbs. of torque. BMW continues to show that it sets the bar for true driving performance! -- View the E9X Wiki

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  #1  
Old 10-17-2013, 02:28 PM
marc131313 marc131313 is offline
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335i Oil Consuption

I have a 2007 225i sedan that uses oil like crazy. On an average it has been using a quart of oil about every 700 miles. There are no leaks or visible exhaust. BMW has checked the car out thoroughly and has found no problem. I have contacted BMW via their website and they claim that this is normal. I am having a hard time believing this. My extended warranty has just run out.

Anyway, the only variable that I can see is that the car uses virtually no oil on long trips. My daily commute is a lot of stop and go traffic, 22 miles each way.

I thought about changing to a higher viscosity oil, or even trying out Amsoil. Any thoughts on that.

My feeling is that the turbos might be cooking oil after I turn the engine off.

Any thoughts?

Marc
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  #2  
Old 10-17-2013, 02:42 PM
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fun2drive fun2drive is offline
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If your turbos were cooking oil it would be on the outside of the seals into the turbo exhaust or intake and you would know it as it will cause codes and what is know as "lazy turbo" Meaning when you command boost the boost is slow to rise or doesn't rise at all.
No external leaks would certainly direct me to removing the throttle body and seeing if oil is inside the intake. The cyclone separator can be suspect and would dump oil into the intake because it is supposed to return oil back to the pan. The entire cyclone separator and PCV set up is a know cause of puking oil into the intake.

I would investigate there first as the most likely place oil is coming from. Also if your turbo is just now puking oil pull a hose ahead of the intake and see how much is located inside the pipe or hose.

Best suggestions I can come up with to help determine the source....

Question
How long has this been going on?
If this is a new problem you might have turbo seals failing but if this is long term suggest what I posted above...

Last edited by fun2drive; 10-17-2013 at 02:43 PM.
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  #3  
Old 10-17-2013, 04:32 PM
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xxE92 xxE92 is offline
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Just wondering, how hard do you drive it? Are you gentle with it when it's cold? My car had a rough start in life as the original owner ran the factory fill oil for almost 2 years/24000 km before it's first change. I have the same year and engine running on 5w -30 and zero oil consumption, so go figure?
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  #4  
Old 10-17-2013, 04:56 PM
surfcity335i surfcity335i is offline
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My brand new E92 335i has 6K on the odometer and has not used/leaked/consumed any measurable amount of oil whatsoever.
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  #5  
Old 10-18-2013, 01:53 AM
gabbester gabbester is offline
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Question Didn't know where to post this.

Hey I didn't know where to post this but since 335 owners are commenting here, I'm hoping that this will catch enough attention here to get a reply. But how do you guys feel about this? And how much will you pay for something like this?

http://www.ebay.com/itm/BMW-3-Series...US_Cars_Trucks
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  #6  
Old 10-18-2013, 03:19 AM
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Zooks527 Zooks527 is offline
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To the OP:
Yeah, you've met BMW's phenomenally wide "normal oil usage" spec. Easily 5x what any rational person would choose.

However, I can't believe you're going through that much oil without seeing SOMETHING. No little drips on the ground after parking all night? No smoke when running? No puff of smoke on startup? Nothing?

Have you tried the "Line your driveway with paper and park over it to look for anything the next day" bit?




Quote:
Originally Posted by gabbester View Post
Hey I didn't know where to post this but since 335 owners are commenting here, I'm hoping that this will catch enough attention here to get a reply. But how do you guys feel about this? And how much will you pay for something like this?

http://www.ebay.com/itm/BMW-3-Series...US_Cars_Trucks
"SALVAGE, REBUILT" says it all. You don't know why or by who. Run. Pay nothing.
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ED May 12, 2009, Munich dropoff May 16, Redelivery June 22, 2009




Prior 33 years of cars: 1967 BelAir wagon / 1968 LeMans Tempest / 1970 Mustang Mach 1 / 1972 El Dorado / 1978 Corvette (kept until first Bronco) / 1981 Subaru GL wagon AWD / 1983 s10 Blazer 4x4 (big mistake) / 1985 Bronco 4x4 / 1996 Bronco 4x4 / 2004 Passat 4motion

Last edited by Zooks527; 10-18-2013 at 03:21 AM.
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  #7  
Old 10-18-2013, 05:10 AM
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CALWATERBOY CALWATERBOY is offline
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Quote:
Originally Posted by marc131313 View Post
I have a 2007 225i sedan that uses oil like crazy. On an average it has been using a quart of oil about every 700 miles. There are no leaks or visible exhaust. BMW has checked the car out thoroughly and has found no problem. I have contacted BMW via their website and they claim that this is normal. I am having a hard time believing this. My extended warranty has just run out.

Anyway, the only variable that I can see is that the car uses virtually no oil on long trips. My daily commute is a lot of stop and go traffic, 22 miles each way.

I thought about changing to a higher viscosity oil, or even trying out Amsoil. Any thoughts on that
.


God Almighty man! Don't do that!


You should buy oil directly from the dealer. Do not be concerned with cost. Being the receptical of dealer fluid, your place in the order of things is secure.

And so what if oil use seems high? That could well be the oil condition sensor causing the engine to burn more in stop 'n' go, high stress driving, to require fresh oil addition. Thus, oil quality is kept high while difficult conditions exist.

Mumble....mumble....I gotta explain everything....
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  #8  
Old 10-18-2013, 05:14 AM
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CALWATERBOY CALWATERBOY is offline
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DSX....Calling DSX......Come In, DSX.....Repost BMW Oil Use Spec.....Come In, DSX...........


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  #9  
Old 10-18-2013, 09:17 AM
jburke4689 jburke4689 is offline
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Data point. My 07 335i with 97k miles on it uses less than one quart between changes and I have been changing every 7,500 miles since new.
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  #10  
Old 10-18-2013, 09:29 AM
surfcity335i surfcity335i is offline
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Quote:
Originally Posted by CALWATERBOY View Post
That could well be the oil condition sensor causing the engine to burn more in stop 'n' go, high stress driving, to require fresh oil addition.
I'm hoping this was said in jest.
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  #11  
Old 10-18-2013, 10:04 AM
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CALWATERBOY CALWATERBOY is offline
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Quote:
Originally Posted by CALWATERBOY View Post


God Almighty man! Don't do that!


You should buy oil directly from the dealer. Do not be concerned with cost. Being the receptical of dealer fluid, your place in the order of things is secure.

And so what if oil use seems high? That could well be the oil condition sensor causing the engine to burn more in stop 'n' go, high stress driving, to require fresh oil addition. Thus, oil quality is kept high while difficult conditions exist.

Mumble....mumble....I gotta explain everything....
Quote:
Originally Posted by surfcity335i View Post
I'm hoping this was said in jest.

Whoa! SurfC, you just gotta work on loosenin' up......

That thing about being the receiver of dealer fluids shoulda tipped you off!
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  #12  
Old 10-18-2013, 11:23 AM
surfcity335i surfcity335i is offline
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Quote:
Originally Posted by CALWATERBOY View Post
Whoa! SurfC, you just gotta work on loosenin' up......

That thing about being the receiver of dealer fluids shoulda tipped you off!
Your posts are a bit abstract sometimes so I wasn't exactly sure. Carry on.
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  #13  
Old 10-18-2013, 12:48 PM
jburke4689 jburke4689 is offline
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Quote:
Originally Posted by marc131313 View Post
I have a 2007 225i sedan that uses oil like crazy. On an average it has been using a quart of oil about every 700 miles. There are no leaks or visible exhaust. BMW has checked the car out thoroughly and has found no problem. I have contacted BMW via their website and they claim that this is normal. I am having a hard time believing this. My extended warranty has just run out.

Quote:
Anyway, the only variable that I can see is that the car uses virtually no oil on long trips. My daily commute is a lot of stop and go traffic, 22 miles each way.
I thought about changing to a higher viscosity oil, or even trying out Amsoil. Any thoughts on that.

My feeling is that the turbos might be cooking oil after I turn the engine off.

Any thoughts?

Marc
Based on your "variable", I would lean toward the cyclone PCV issue. In stop and go driving your intake spends a lot of time with negative pressure (vacuum). On trips, (I am assuming you mean mostly highway driving) it would be mostly under positive pressure from the turbos so it wouldn't be pulling the oil into the combustion process. Just a thought.
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  #14  
Old 10-18-2013, 05:20 PM
335i Driver 335i Driver is offline
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My guess is that when whoever cut off cylinders 5&6 to turn it in to a 225 from a 335 they didn't seal the end of the block so you probably have oil leaking all over the place from the poorly sealed block.
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  #15  
Old 10-18-2013, 05:26 PM
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CALWATERBOY CALWATERBOY is offline
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Quote:
Originally Posted by jburke4689 View Post
Based on your "variable", I would lean toward the cyclone PCV issue. In stop and go driving your intake spends a lot of time with negative pressure (vacuum). On trips, (I am assuming you mean mostly highway driving) it would be mostly under positive pressure from the turbos so it wouldn't be pulling the oil into the combustion process. Just a thought.

Brings us to a curious spot - is there a relationship between high oil consumption and early intake valve fouling?
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  #16  
Old 10-18-2013, 06:33 PM
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Zooks527 Zooks527 is offline
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Quote:
Originally Posted by CALWATERBOY View Post
Brings us to a curious spot - is there a relationship between high oil consumption and early intake valve fouling?
Nah, a (1 qt / 700 mile) stream of oil mist across the valves helps keep them clean.
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2009 335i xDrive coupe, Jet Black, Black Leather, Grey Poplar, Steptronic, ZPP, ZSP, ZCW, iPod/USB, HD radio, Parking Assist. Rear Fogs, Hardwire V1, ProFit G3.
ED May 12, 2009, Munich dropoff May 16, Redelivery June 22, 2009




Prior 33 years of cars: 1967 BelAir wagon / 1968 LeMans Tempest / 1970 Mustang Mach 1 / 1972 El Dorado / 1978 Corvette (kept until first Bronco) / 1981 Subaru GL wagon AWD / 1983 s10 Blazer 4x4 (big mistake) / 1985 Bronco 4x4 / 1996 Bronco 4x4 / 2004 Passat 4motion
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