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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > All-Wheel-Drive (Xi / xDrive) Talk > Burning Oil suspicion



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      05-28-2014, 05:09 PM   #1
Drock28
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Burning Oil suspicion

hey whats up..

thought id ask incase..

I have a 2009 328xi coupe with 38,000kms..

bought it used in Feb 2014, with 34,000kms on it..
car is really clean literally mint condition..

brought it for oil change at my local BMW specialist shop..around March 2014.

after the oil change, when I checked the oil level on the dash.. the indicator showed it was at Max.

now approx 2months after.. I happen to check the level, and it was at 3/4.

I havent checked it since I got the oil changed.

so would this be normal, or is this a sign that the engine is burning oil..?

is the 328xi V6 engine known to burn oil..?

anyways.. just wanted to inquire on this incase..
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      05-28-2014, 05:12 PM   #2
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Sounds fairly normal to me.
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      05-28-2014, 05:27 PM   #3
Drock28
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Quote:
Originally Posted by gtaccord View Post
Sounds fairly normal to me.
much appreciate, the vote of confidence..

but given this is my first bimmer and not as familiar with them..

when i saw the oil level showed 3/4 today, my immediate reaction was some concern..

whereas the day of the oil change only 2months ago.. the reader showed it at max. and now the reader is showing a quarter less..
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      05-28-2014, 09:20 PM   #4
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Quote:
Originally Posted by Drock28
Quote:
Originally Posted by gtaccord View Post
Sounds fairly normal to me.
much appreciate, the vote of confidence..

but given this is my first bimmer and not as familiar with them..

when i saw the oil level showed 3/4 today, my immediate reaction was some concern..

whereas the day of the oil change only 2months ago.. the reader showed it at max. and now the reader is showing a quarter less..
They all burn oil. It goes through the intakes and goes in through the intake valves into the engine. The 328 will do it less bc of no turbo. That whole line from max to min is about a quart, so 1/4 of a quart in a couple months isn't so bad.

Good luck with the car..
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      05-28-2014, 10:51 PM   #5
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Mine has done that twice, but oddly enough, not in a row. Last July I had it changed and during a road trip in December I got the add 1 quart light. Luckily there was a dealer not too far away and topped it off. Now I just changed it a few weeks ago, but up until that point, it was still as full as it was in December when I topped it off. The shop that did the changed used Castrol 5w-40 (I topped off with BMW 5w-30, Castrol ). This time I used Mobile 1 0w-40. I will say though, that when I did the change, I put in exactly 6.8qts. The iDrive read max after a 10min drive. The next morning I checked again and it had lost a bar. Homie don't play dat, so I put in the extra 0.2qts. It still didn't read max but I didn't want to overfill. The next day I checked again and now it's back to max and still is to this day. Usually I don't care about not having a dipstick, but it's times like this make me wish we had them!
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      05-29-2014, 09:17 AM   #6
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That's pretty much normal. You might have a minor leak at the valve cover gasket (very common), or oil filter housing gasket (also common), but losing a bit of oil in these cars isn't abnormal.

Keep in mind the display for the oil level isn't from full-to-empty. It's basically showing you the top quart of oil in the engine.

When you hit the "LOW" end of the scale it means you're down approx a quart. If that happens, add 1/2qt and check again the next day. Give the engine a good once-over for oil leaks, but losing a bit of oil isn't abnormal.

Since I replaced my VCG, oil filter gasket and valvetronic gasket I haven't lost any oil since my last change. Most people report losing a bit though it seems, so don't sweat it.
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      05-30-2014, 09:58 AM   #7
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Its normal for your car to burn a small amount of oil, say not more than a quart between changes.

It's even noted in the manual. I typically don't have to add any, but have a few times.
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      05-31-2014, 07:23 AM   #8
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hi, appreciate all the feedback..

so I guess as everyone reports.. it is normal that it burns abit of oil..

I did not realize the oil gauge was for the top guart..
so based on that.. my gauge is showing 3/4.. so thats basically a 1/4 of a guart gone after about 3 months..

I would never wait to do the oil change based on what BMW recommends..
but based on this progress.. I will likely have to add a guart before next oil change.

i'll keep a close eye on it, to see how it goes etc..
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      06-05-2014, 05:27 PM   #9
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Could be your valve cover. Any BMW mechanic will tell you a leaky valve cover is BMW's bread and butter.
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      06-08-2014, 05:13 PM   #10
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Maybe he should have bought a BMW with an I6 instead of a V6, like the rest of us
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      08-28-2014, 03:04 PM   #11
Drock28
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hey whats up.. started this thread while back in May 2014..

at the time, I was concerned cause I noticed my oil gauge was showing at 3/4 on the bar.

this was from a recent oil change back in March 2014.. where the oil gauge showed Max after the oil change was done.

now we are late August.. and the oil gauge now shows exactly at 50% on the bar..?
so it is dropping..
I understand the gauge represents the top quart.. so that means the car has lost half a quart in about ~5months..

surely I will get the +1L signal before next oil change.. which I would do March 2015..

I dont see any signs of oil leakage.. so that means it must be burning it..?
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      08-31-2014, 10:34 AM   #12
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If you want to have an accurate idea you should be paying attention to mileage not time. I personally use/leak a quart every 5k. im also up at 215k with a few known oil leaks. I also noticed my oil separator is leaking oil into my intake manifold. all engines consume oil on some level.
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      09-01-2014, 09:02 AM   #13
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not gonna lie.. my gauge is always at max now that ive gotten my OFH gasket fixed. i had a similar issue as you. i would inspect to be sure the drain plug is not dripping and the OFH is clean of oil on the outside of it. the VCG is also a suspect spot. having a bmw tech check all of these is not a bad idea. at your mileage and that you are in montreal, id look to have the front driveshafts checked too. mine had a leaking seal at 50kmi.
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      09-02-2014, 07:04 AM   #14
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Or Maybe A Gasket Leak?
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      09-02-2014, 07:41 PM   #15
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these bmws eat oil like no other..
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      09-22-2014, 07:14 PM   #16
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My 08 328xi uses about one quart per 6-7K miles. This is roughly the same consumption as my Honda Pilot. I consider this normal. I go by miles/quart.
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