Forums Migration

Please read this thread

Recent Topics
Bought a grapple
by Ausfahrt - 07/10/20 06:30 PM
What is this charger for?
by CharlieJ - 07/10/20 05:58 PM
World War II movie Greyhound
by skyactiv - 07/10/20 05:48 PM
GC for Fuel Dilution - Accuracy
by Gene K - 07/10/20 05:21 PM
How Do I Get This On?
by Gebo - 07/10/20 05:08 PM
Creativity Suggestions?
by maverickfhs - 07/10/20 03:18 PM
3.5 Ecoboost Oil, I've decided.
by Gene K - 07/10/20 02:07 PM
Mopar Extended Warranty with 100% Refund Option
by The Critic - 07/10/20 12:46 PM
The great lakes are warm!
by OVERKILL - 07/10/20 11:38 AM
OSX 10.15.5 Mail Program POP Issue
by JHZR2 - 07/10/20 10:51 AM
Slightly used Hyundais's and Kia's for sale...
by mattwithcats - 07/10/20 10:38 AM
Best power steering fluid to quiet fussy pump
by dfarr67 - 07/10/20 10:30 AM
Triple QX 5W40 Oil.
by SpitFire6 - 07/10/20 09:46 AM
626,000 mile Pentastar teardown
by wwillson - 07/10/20 08:25 AM
Price components of gasoline and diesel
by Snagglefoot - 07/10/20 08:20 AM
Peak Synthetic
by oilchangeguy - 07/10/20 07:01 AM
[Cut Open] FRAM Ultra XG7317 (6230 miles)
by DuckRyder - 07/10/20 06:41 AM
Newest Members
SUmeme22, DaveCaddell, SharkNC, Puckster02, TurbodogTodd
71907 Registered Users
Who's Online Now
75 registered members (Astro14, BigGeo, BHopkins, 77Se7en, 55hambone, 7 invisible), 1,748 guests, and 49 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics307,693
Posts5,315,964
Members71,907
Most Online4,538
Jan 20th, 2020
Donate to BITOG
Print Thread
Hop To
Page 1 of 2 1 2
Post-OC oil consumption, BMW N20 #5338123 02/01/20 12:32 PM
Joined: Oct 2017
Posts: 854
V
vavavroom Offline OP
OP Offline
V
Joined: Oct 2017
Posts: 854
This is my 2013 328i with the turbocharged N20 4-cylinder engine and a little over 60,000 miles on it. The engine has been getting M1 0w40 since new. After an oil change, oil consumption gas always been increased for the first 1,200 miles. The engine goes from consuming about 0.7 qt over the first 1,200 miles to consuming just half a quart over the remaining 6,300 miles. This engine has a single turbo, double VANOS, direct injection. I always drive the car about the same. It's not like I take it out to the track and race it for the first 1,200 miles. There's an electronic oil level gauge with min and max marks, 1 quart apart, no conventional dipstick. This behaviour is reliably consistent. What are possible explanations?

Re: Post-OC oil consumption, BMW N20 [Re: vavavroom] #5338137 02/01/20 12:47 PM
Joined: May 2018
Posts: 1,787
K
ka9mnx Offline
Offline
K
Joined: May 2018
Posts: 1,787
Sounds normal. I don't see anything wrong.


2005 Ranger 3.0 - SuperTech Syn 0w-20/Motorcraft
2000 4Runner 3.4 - SuperTech Syn 5w-30/Toyota
1997 B2500 Van 3.9 - M1 HM 10w-30/Mopar
1993 F150 4.9 - SuperTech Syn 5w-30/Motorcraft
Re: Post-OC oil consumption, BMW N20 [Re: vavavroom] #5338140 02/01/20 12:50 PM
Joined: Aug 2010
Posts: 2,324
B
benjy Offline
Offline
B
Joined: Aug 2010
Posts: 2,324
do you know that "gauge is CORRECT" + why an 0w oil in california unless its way north + winter!!

Re: Post-OC oil consumption, BMW N20 [Re: benjy] #5338170 02/01/20 01:26 PM
Joined: Dec 2004
Posts: 13,650
7
77Se7en Online Content
Online Content
7
Joined: Dec 2004
Posts: 13,650
Originally Posted by benjy
do you know that "gauge is CORRECT" + why an 0w oil in california unless its way north + winter!!

That's how we-USAers roll..... 5W in Minnesota, Wisconsin and Yooper Michigan. 0W in Florida, Texas and California. smirk


Spiritual Intuitive / Whisperer-Medium (Involuntary & Non-Profit)
Valvoline ME, Mobil-1 EP & Pennzoil Ultra Platinum 5w30s
AC Delco Ecore Oil Filters







Re: Post-OC oil consumption, BMW N20 [Re: ka9mnx] #5338173 02/01/20 01:27 PM
Joined: Oct 2017
Posts: 854
V
vavavroom Offline OP
OP Offline
V
Joined: Oct 2017
Posts: 854
Originally Posted by ka9mnx
Sounds normal. I don't see anything wrong.


With all my other vehicles, past and present, oil consumption is pretty much consistent, with major increases only due to prolonged high-speed driving, extra load on the engine like when driving in the mountains or when towing. Why would new oil be consumed at a higher rate than oil that's been in use and that has already sheared down a bit?

Re: Post-OC oil consumption, BMW N20 [Re: benjy] #5338179 02/01/20 01:34 PM
Joined: Oct 2017
Posts: 854
V
vavavroom Offline OP
OP Offline
V
Joined: Oct 2017
Posts: 854
Originally Posted by benjy
do you know that "gauge is CORRECT" + why an 0w oil in california unless its way north + winter!!

Gauge accuracy seems fine. Let's say half a quart low and I add half a quart it's back to max. Doesn't really matter if it's dead-nuts accurate. It's accurate enough to tell me oil consumption is increased with new oil for the first 1,200 miles. After an oc. 0w40 because you can't go low enough for startup protection and 40 because it's specified for the engine. I also drive the car frequently around Tahoe during skiing season.

Re: Post-OC oil consumption, BMW N20 [Re: vavavroom] #5338212 02/01/20 02:24 PM
Joined: Mar 2012
Posts: 9,916
edyvw Offline
Offline
Joined: Mar 2012
Posts: 9,916
Originally Posted by vavavroom
Originally Posted by benjy
do you know that "gauge is CORRECT" + why an 0w oil in california unless its way north + winter!!

Gauge accuracy seems fine. Let's say half a quart low and I add half a quart it's back to max. Doesn't really matter if it's dead-nuts accurate. It's accurate enough to tell me oil consumption is increased with new oil for the first 1,200 miles. After an oc. 0w40 because you can't go low enough for startup protection and 40 because it's specified for the engine. I also drive the car frequently around Tahoe during skiing season.

1. 0W: Irrelevant in your case. There is no any difference between 5W and 0W in CA temperatures, unless we are talking Tahoe or Yosemite and some freak wether and temperatures below -10 or -20. However, Mobil1 0W40 FS is good oil anyway, and just bcs. it is 0W does not mean you cannot or should not use it.
2. That being said, IMO there are better oils. First of all, I do not like very high sulfated ash number of that oil at 1.32. That is really not good for DI engines and when FS was introduced I was wondering if Mobil1 is trying to address TBN retention with higher SA number. Previous, VISOM version was known to deplete TBN quite fast in DI engines. Castrol 0W40 IMO is more stout oil, Pennzoil Euro L 5W40 is also very stout and still carries LL01 approval.
3. W40 is NOT specified for your engine. For your engine specified are LL01 and LL01FE oils. I personally would never put LL01FE in my BMW. LL01 can be 0W30, 5W30, 0W40 or 5W40. SO grade is irrelevant for your application as long as it is LL01. Now, LL01 is becoming rare, so shooting target should be MB229.5.


11' BMW 328i xDrive 6MT (Pennzoil Platinum Euro 5W40+ MANN filter)
11' VW Tiguan 2.0T (Castrol 0W30+OE filter)
15' Toyota Sienna AWD (Mobil1 5W30 EP+OE filter).
Re: Post-OC oil consumption, BMW N20 [Re: vavavroom] #5338247 02/01/20 03:37 PM
Joined: Oct 2017
Posts: 854
V
vavavroom Offline OP
OP Offline
V
Joined: Oct 2017
Posts: 854
I specifically mentioned the car is driven in the Tahoe area during the cold season. I am not interested in this becoming a discussion about my oil choice for this engine unless a plausible correlation to my observation regarding initial post-oc oil consumption can be made.

Re: Post-OC oil consumption, BMW N20 [Re: vavavroom] #5338254 02/01/20 03:44 PM
Joined: Jul 2017
Posts: 1,534
O
OilUzer Offline
Offline
O
Joined: Jul 2017
Posts: 1,534
Regarding increased oil consumption during first 1200 miles and then it tapers off ...

I've experienced the same with different cars and/or oils. Oil consumption is higher at first and gradually decreases.

Part of it could be due to accumulated fuel dilution which makes it look like less oil is being used ... Just a theory not sure! Drive the card harder (higher rpm) once in a while and see what happens and if you get a more linear oil loss.

another theory ... I think the more volatile portion of the oil burns off or evaporates first or quicker and whatever is left is less volatile and the Noack related oil loss decreases over time.
i don't think Noack test measures the rate of the oil loss. It just measures the total weight fraction lost over 60 minutes ... As a result, it is possible that portion of oil can evaporate very quickly and then tapers off and the potential non-linearity is not represented with the Noack number. Also some oils could be more susceptible to this!

Re: Post-OC oil consumption, BMW N20 [Re: OilUzer] #5338304 02/01/20 05:13 PM
Joined: Jul 2008
Posts: 1,475
R
rubberchicken Offline
Offline
R
Joined: Jul 2008
Posts: 1,475
Originally Posted by OilUzer
Regarding increased oil consumption during first 1200 miles and then it tapers off ...

I've experienced the same with different cars and/or oils. Oil consumption is higher at first and gradually decreases.

Part of it could be due to accumulated fuel dilution which makes it look like less oil is being used ... Just a theory not sure! Drive the card harder (higher rpm) once in a while and see what happens and if you get a more linear oil loss.

another theory ... I think the more volatile portion of the oil burns off or evaporates first or quicker and whatever is left is less volatile and the Noack related oil loss decreases over time.
i don't think Noack test measures the rate of the oil loss. It just measures the total weight fraction lost over 60 minutes ... As a result, it is possible that portion of oil can evaporate very quickly and then tapers off and the potential non-linearity is not represented with the Noack number. Also some oils could be more susceptible to this!


I like this theory- and I think this is how you could test it: Locate a VOA or do your own, then do a UOA at 50% of your OCI. At the oil change do another UOA- and compare the viscosity numbers at all 3 intervals. The 2nd change may show a higher viscosity due to the very light fractions having been consumed, while the last UOA should be about the same as the 2nd. Essentially if you get viscosity that follows the VOA/UOA of low, high, high then you confirmed the theory.

Re: Post-OC oil consumption, BMW N20 [Re: OilUzer] #5338371 02/01/20 06:48 PM
Joined: Apr 2005
Posts: 785
M
Mitch Alsup Offline
Offline
M
Joined: Apr 2005
Posts: 785
Originally Posted by OilUzer
Regarding increased oil consumption during first 1200 miles and then it tapers off ...


When my Ferrari F355 has a bit too much oil in the dry sump, the engine will consume the extra until the level gets down to 1/2 way mark on the dip stick and then it will not consume a drop for the rest of the OCI.

I attribute this to the vapor separator allowing micro-droplets of oil to be sucked into the intake when the oil level is too high and when the oil level gets back down to where it is supposed to be, this phenomenon no longer takes place.

Re: Post-OC oil consumption, BMW N20 [Re: vavavroom] #5338486 02/01/20 09:28 PM
Joined: Oct 2017
Posts: 854
V
vavavroom Offline OP
OP Offline
V
Joined: Oct 2017
Posts: 854
I do UOAs and fuel dilution is not an issue. The oil stays almost in grade after 7,500 miles. It's still a thick xW30 which is fine since the engine calls for 5W30/40. After the next oil change I will not fill it all the way but 0.5 quarts short of max and observe.

Re: Post-OC oil consumption, BMW N20 [Re: vavavroom] #5338497 02/01/20 09:43 PM
Joined: Jun 2009
Posts: 1,201
L
ledslinger Offline
Offline
L
Joined: Jun 2009
Posts: 1,201
Not super familiar with the oil level monitor system, but I question the ability to use it to measure tenths of a quart accurately. When the full bar is lit, that just means the level is above the bar below it, not that the it is topped fully to maximum. To actually know where full maximum is, you'd have to trigger an overfill and subtract the amount it took to indicate the overfill that was above the amount that only indicated full.

Re: Post-OC oil consumption, BMW N20 [Re: vavavroom] #5338608 02/01/20 11:51 PM
Joined: Oct 2017
Posts: 854
V
vavavroom Offline OP
OP Offline
V
Joined: Oct 2017
Posts: 854
I know sump capacity I know how much comes out and how much I put in, and I see the corresponding oil level. I know how much I add to keep the oil level at the max mark. While I'm sure a conventional dipstick is superior, even if my calculations are 1/8 of a quart off, I still can tell that oil consumption is initially high and then tapers off rapidly. This trend is irrefutable. Will see what happens if I keep the oil level lower.

Re: Post-OC oil consumption, BMW N20 [Re: vavavroom] #5338663 02/02/20 01:21 AM
Joined: Mar 2012
Posts: 9,916
edyvw Offline
Offline
Joined: Mar 2012
Posts: 9,916
Originally Posted by vavavroom
I specifically mentioned the car is driven in the Tahoe area during the cold season. I am not interested in this becoming a discussion about my oil choice for this engine unless a plausible correlation to my observation regarding initial post-oc oil consumption can be made.


Only thing that is constant here is your oil choice (well, 2013 M1 0W40 and 2020 M1 0W40 are two different oils). How about you experiment and you try something different just to see whether behavior will be different? Eliminate that possibility, and it is easy one to eliminate.
Than if everything stays the same you can go troubleshooting elsewhere.

Last edited by edyvw; 02/02/20 01:23 AM.

11' BMW 328i xDrive 6MT (Pennzoil Platinum Euro 5W40+ MANN filter)
11' VW Tiguan 2.0T (Castrol 0W30+OE filter)
15' Toyota Sienna AWD (Mobil1 5W30 EP+OE filter).
Page 1 of 2 1 2
Previous Thread
Index
Next Thread

BOB IS THE OIL GUY® Powered by UBB.threads™