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Dealer bulk 5w-30 3730 miles, Malibu 25,400 miles #4563694
11/04/17 08:21 AM
11/04/17 08:21 AM
Joined: Mar 2010
Posts: 1,343
Michigan
BobsArmory Offline OP
BobsArmory  Offline OP
Joined: Mar 2010
Posts: 1,343
Michigan
UOA for my wife's 2016 Malibu with the 1.5 liter direct injection turbo . Yes I know it was a short run but I mostly wanted to drain the unknown dealer bulk oil out and put in something that I was sure had DEXOS Gen2 certifications. After prying and prodding the service writer about what oil it was he would only say that it was a Mobil product but I'm not even really sure about that. He got kind of ticked off when I was questioning him. Air filter is original factory. Air box has never been opened up.

If I can't find a leak, should I change out the air filter?
Does this look like a Mobil product?
Thoughts?



Keeping the forces of evil at bay
2016 Chevy Malibu LT 1.5 Liter Turbo
2017 Chevy Equinox LT 2.4 Liter
Re: Dealer bulk 5w-30 3730 miles, Malibu 25,400 miles [Re: BobsArmory] #4563712
11/04/17 08:35 AM
11/04/17 08:35 AM
Joined: Oct 2014
Posts: 12,567
Idaho
CT8 Offline
CT8  Offline
Joined: Oct 2014
Posts: 12,567
Idaho
The oil is thin.


2015 Ford F150 2.7
2018 Ford F350 6.2
Re: Dealer bulk 5w-30 3730 miles, Malibu 25,400 miles [Re: BobsArmory] #4563732
11/04/17 08:51 AM
11/04/17 08:51 AM
Joined: Jun 2015
Posts: 4,412
New England
Virtus_Probi Offline
Virtus_Probi  Offline
Joined: Jun 2015
Posts: 4,412
New England
The moly looks high and the boron low compared to M1 5W30 VOAs I've seen, but the low calcium concentration along with the presence of magnesium remind me of M1. The zinc is actually kind of high in this sample, which is good for preventing LSPI. I'd guess you might have had some fuel dilution that Blackstone didn't catch.
I believe that the oil change during the recall service for that engine was supposed to be done with ACDelco oil in the US and M1 in Canada, so I wouldn't be surprised if you had ACDelco oil and that was made by XOM. Just my speculation, though.
We have some evidence that dexos1 Gen 2 oils from other makers are going to start looking like this...


2014 Forester XT, 90000 miles
Last Change;
M1 5W30 d1G2
Tokyo Roki 15208AA170 filter
Re: Dealer bulk 5w-30 3730 miles, Malibu 25,400 miles [Re: BobsArmory] #4563739
11/04/17 08:57 AM
11/04/17 08:57 AM
Joined: Jul 2017
Posts: 1,292
Douglas County, Colorado
bigj_16 Offline
bigj_16  Offline
Joined: Jul 2017
Posts: 1,292
Douglas County, Colorado
I would change the air filter.

Re: Dealer bulk 5w-30 3730 miles, Malibu 25,400 miles [Re: BobsArmory] #4563787
11/04/17 09:50 AM
11/04/17 09:50 AM
Joined: Sep 2015
Posts: 3,938
Connecticut
69GTX Offline
69GTX  Offline
Joined: Sep 2015
Posts: 3,938
Connecticut
At least through PQIA samples for 20 and 30 grade oils, almost none of them show up with magnesium except M1 synthetic. Older castrol had magnesium but at 3X these levels. And if M1, it sheared down from 11.1 to 8.55 in only 3700 miles....quite a lot. Up to only a few years ago all the Mobil conventional oils were non-magnesium.


----------------

2001 Lincoln Cont 4.6L DOHC/ 39K mi / QS HM 5w30 / FUG XG2
1999 Camaro SS M6 /19K /Mobil 1 0w40 /Fram UG /GM MTL-ATF
1969 Ply GTX/RRs
Re: Dealer bulk 5w-30 3730 miles, Malibu 25,400 miles [Re: BobsArmory] #4563791
11/04/17 09:53 AM
11/04/17 09:53 AM
Joined: Jul 2009
Posts: 743
texas
danez_yoda Offline
danez_yoda  Offline
Joined: Jul 2009
Posts: 743
texas
26K miles on a air filter will depend on how dusty your roads are. City only driving, that last a LONG time. driving near dusty construction sites or gravel/dirts roads, check frequently.

Re: Dealer bulk 5w-30 3730 miles, Malibu 25,400 miles [Re: bigj_16] #4563836
11/04/17 10:30 AM
11/04/17 10:30 AM
Joined: Dec 2016
Posts: 7,126
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 7,126
Waco, TX
Originally Posted By: bigj_16
I would change the air filter.


NEW air filters are more porous, actually making silicon numbers increase.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Dealer bulk 5w-30 3730 miles, Malibu 25,400 miles [Re: BobsArmory] #4563906
11/04/17 11:49 AM
11/04/17 11:49 AM
Joined: May 2012
Posts: 1,831
The land of USA-made Subies!
SubieRubyRoo Offline
SubieRubyRoo  Offline
Joined: May 2012
Posts: 1,831
The land of USA-made Subies!
From the viscosities, I'd say they used the 0W-20 dexos by accident... if only because BOTH viscosity checks fall exactly into line with every 0W20 UOA I've had done on my Fusion. Nature just doesn't make mistakes that pretty smile And, considering that this: "Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is recommended. See Engine Oil 0 290." Is all the owner's manual states, well, 0W20 dexos1 IS a "proper SAE viscosity grade" for some GM engines smile

Re: Dealer bulk 5w-30 3730 miles, Malibu 25,400 miles [Re: BobsArmory] #4563987
11/04/17 01:20 PM
11/04/17 01:20 PM
Joined: Mar 2010
Posts: 1,343
Michigan
BobsArmory Offline OP
BobsArmory  Offline OP
Joined: Mar 2010
Posts: 1,343
Michigan
The last time this car was there they put on the incorrect oil filter. Now it looks like they might have put in the wrong weight oil. Good thing the free oil changes are done and I'll be doing it myself.


Keeping the forces of evil at bay
2016 Chevy Malibu LT 1.5 Liter Turbo
2017 Chevy Equinox LT 2.4 Liter
Re: Dealer bulk 5w-30 3730 miles, Malibu 25,400 miles [Re: Linctex] #4563988
11/04/17 01:23 PM
11/04/17 01:23 PM
Joined: Mar 2010
Posts: 1,343
Michigan
BobsArmory Offline OP
BobsArmory  Offline OP
Joined: Mar 2010
Posts: 1,343
Michigan
Originally Posted By: Linctex
Originally Posted By: bigj_16
I would change the air filter.


NEW air filters are more porous, actually making silicon numbers increase.


But if the high Silicon levels are due to a defective filter wouldn't the silicon levels go down after installing a non defective filter?


Keeping the forces of evil at bay
2016 Chevy Malibu LT 1.5 Liter Turbo
2017 Chevy Equinox LT 2.4 Liter
Re: Dealer bulk 5w-30 3730 miles, Malibu 25,400 miles [Re: BobsArmory] #4564036
11/04/17 02:17 PM
11/04/17 02:17 PM
Joined: Oct 2009
Posts: 3,509
Wet side WA
JohnnyJohnson Offline
JohnnyJohnson  Offline
Joined: Oct 2009
Posts: 3,509
Wet side WA
Originally Posted By: BobsArmory
Originally Posted By: Linctex
Originally Posted By: bigj_16
I would change the air filter.


NEW air filters are more porous, actually making silicon numbers increase.


But if the high Silicon levels are due to a defective filter wouldn't the silicon levels go down after installing a non defective filter?



Oh LOL not until it had a million miles on it! happy


2004 Corolla 126649
Out: VML 5w-30 TG4967 OCI 5007 Miles
In: EDGE EP 5W-30 Bosch 3311 122537 7-18-18
2006 Duramax 74478
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73705 4-22-18
Re: Dealer bulk 5w-30 3730 miles, Malibu 25,400 miles [Re: BobsArmory] #4564069
11/04/17 02:51 PM
11/04/17 02:51 PM
Joined: Dec 2002
Posts: 4,252
The Garden State
Whimsey Offline
Whimsey  Offline
Joined: Dec 2002
Posts: 4,252
The Garden State
Originally Posted By: BobsArmory

But if the high Silicon levels are due to a defective filter wouldn't the silicon levels go down after installing a non defective filter?


I don't think the filter media is defective, unless the filter is torn. More likely in a new vehicle the higher silicon levels would be a result of engine break in or a poor fitting air filter, ie defective gasket, or an intake air leak. Which is doubtful on a new vehicle unless an air intake connection from the factory is loose.

Whimsey

Re: Dealer bulk 5w-30 3730 miles, Malibu 25,400 miles [Re: SubieRubyRoo] #4564130
11/04/17 04:17 PM
11/04/17 04:17 PM
Joined: Jul 2016
Posts: 1,682
Jacksonville, FL
FlyNavyP3 Offline
FlyNavyP3  Offline
Joined: Jul 2016
Posts: 1,682
Jacksonville, FL
Originally Posted By: SubieRubyRoo
From the viscosities, I'd say they used the 0W-20 dexos by accident... if only because BOTH viscosity checks fall exactly into line with every 0W20 UOA I've had done on my Fusion. Nature just doesn't make mistakes that pretty smile And, considering that this: "Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is recommended. See Engine Oil 0 290." Is all the owner's manual states, well, 0W20 dexos1 IS a "proper SAE viscosity grade" for some GM engines smile


With the low flash point I'd say fuel dilution is more likely the culprit here.


Luke
P-3C and P-8A Maritime Weapons and Tactics Instructor, Instructor Tactical Coordinator and Mission Commander
Re: Dealer bulk 5w-30 3730 miles, Malibu 25,400 miles [Re: 69GTX] #4564202
11/04/17 05:31 PM
11/04/17 05:31 PM
Joined: Jun 2002
Posts: 19,494
Iowegia - USA
MolaKule Offline
MolaKule  Offline
Joined: Jun 2002
Posts: 19,494
Iowegia - USA
Originally Posted By: 69GTX
At least through PQIA samples for 20 and 30 grade oils, almost none of them show up with magnesium except M1 synthetic. Older castrol had magnesium but at 3X these levels. And if M1, it sheared down from 11.1 to 8.55 in only 3700 miles....quite a lot. Up to only a few years ago all the Mobil conventional oils were non-magnesium.


thumbsup

This is still most likely a tight engine and the product is most likely a Mobil 1 product, but which one is impossible to tell.

The important thing is to resample down the road and see if the wear metals and silicon trend downward. Trending is the key here as one single analysis is only a snapshot in time.


"Molon Labe" (Greek, King Leonidas to the Persians regarding their weapons "Come and Take Them!").
Re: Dealer bulk 5w-30 3730 miles, Malibu 25,400 miles [Re: BobsArmory] #4564232
11/04/17 06:14 PM
11/04/17 06:14 PM
Joined: Aug 2008
Posts: 21,228
ON, Canada eh?
StevieC Online content
StevieC  Online Content
Joined: Aug 2008
Posts: 21,228
ON, Canada eh?
I had high silicon the whole life of my Santa Fe's life and it was just gasket material leeching into the oil. Check for air infiltration anyway though.


'18 Dodge Grand Caravan GT - AMSOIL SS 5w20
'06 Santa Fe - 535,000km AMSOIL SS 0w30 / ATF
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