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Did Mobil 1 already meet dexos1 gen2 #4612991
12/24/17 12:24 PM
12/24/17 12:24 PM
Joined: Apr 2004
Posts: 7,734
New York
pbm Offline OP
pbm  Offline OP
Joined: Apr 2004
Posts: 7,734
New York
It seems that some oil companies had already begun reducing calcium in their oils when LSPI started to become a problem. Mobil 1 and Castrol Edge are in this category. I'm wondering if they already met the new gen2 dexos standard but obviously couldn't say so?


'Journalism is Dead'
Re: Did Mobil 1 already meet dexos1 gen2 [Re: pbm] #4613066
12/24/17 01:56 PM
12/24/17 01:56 PM
Joined: Oct 2008
Posts: 12,471
The Old North State
Sayjac Offline
Sayjac  Offline
Joined: Oct 2008
Posts: 12,471
The Old North State
Discussed recently. Checking the official list seems to best way to determine. Yes M1 meets the topic spec.

http://www.centerforqa.com/dexos-brand2015/

Re: Did Mobil 1 already meet dexos1 gen2 [Re: pbm] #4613072
12/24/17 02:04 PM
12/24/17 02:04 PM
Joined: Oct 2010
Posts: 1,779
.
Danh Offline
Danh  Offline
Joined: Oct 2010
Posts: 1,779
.
The "old " M1 version probably did. It has been a low-calcium formulation for years, which is consistent with Gen2 specs and, iirc, 2018 GM manuals call for GM-branded oil, an oil meeting dexos1Gen2 OR dexos1 Mobil1.

Last edited by Danh; 12/24/17 02:06 PM.
Re: Did Mobil 1 already meet dexos1 gen2 [Re: Danh] #4613167
12/24/17 03:46 PM
12/24/17 03:46 PM
Joined: Apr 2004
Posts: 7,734
New York
pbm Offline OP
pbm  Offline OP
Joined: Apr 2004
Posts: 7,734
New York
Originally Posted By: Danh
The "old " M1 version probably did. It has been a low-calcium formulation for years, which is consistent with Gen2 specs and, iirc, 2018 GM manuals call for GM-branded oil, an oil meeting dexos1Gen2 OR dexos1 Mobil1.


Yes...that's what I was getting at.

I think that someone using Mobil 1 for the last few years was using a DG2 without even knowing it.


'Journalism is Dead'
Re: Did Mobil 1 already meet dexos1 gen2 [Re: pbm] #4613180
12/24/17 04:13 PM
12/24/17 04:13 PM
Joined: Jul 2015
Posts: 4,624
Down Under
SR5 Offline
SR5  Offline
Joined: Jul 2015
Posts: 4,624
Down Under
Yep, just guessing here, but I suspect you are correct.
M1 was a D1-G2 oil back in the D1-G1days.


Penrite Vantage 10W40 SN & A3/B4 + Wesfil-Cooper Z154
Re: Did Mobil 1 already meet dexos1 gen2 [Re: pbm] #4613209
12/24/17 04:42 PM
12/24/17 04:42 PM
Joined: Mar 2017
Posts: 5,370
Soviet State of Washington
PimTac Offline
PimTac  Offline
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Posts: 5,370
Soviet State of Washington
Wasn’t it known that if the dexos license number on the bottle starts with a D then it is gen 2?


2017 Mazda CX-5 Grand Touring

Valvoline Advanced Synthetic 0w20
Mobil 1 M108A EP filter

Re: Did Mobil 1 already meet dexos1 gen2 [Re: pbm] #4613255
12/24/17 06:01 PM
12/24/17 06:01 PM
Joined: Jun 2016
Posts: 2,960
MN
oil_film_movies Offline
oil_film_movies  Offline
Joined: Jun 2016
Posts: 2,960
MN
Originally Posted By: pbm
It seems that some oil companies had already begun reducing calcium in their oils when LSPI started to become a problem. Mobil 1 and Castrol Edge are in this category. I'm wondering if they already met the new gen2 dexos standard but obviously couldn't say so?


Well, Castrol Edge has been heavy-Ca the last few years. https://bobistheoilguy.com/forums/ubbthreads.php/topics/4419906/Castrol_Edge_5w30;_8,930km;_20 and others.
Castrol Edge a few years ago was using low-Ca formulas. They switched BACK to high-Ca. Confusing, I know. Of course with dexos1 Gen2 Castrol Edge black bottles hitting the shelf now, they have probably returned to low-Ca formulas, but we'll see soon as oil analyses start coming in.

M1 has been consistent with their low-Ca formulas for several years now. My 2018 Chevy manual says I can use any generation of dexos1 Mobil1.
They still may have had to change their formula for Gen2 at least for timing chain wear tests. We don't know.
On the other hand, GM has cooperated with Exxon-Mobil for so long now that they could have based their dexos1 Gen2 test limits on Mobil1 results !!!! I suspect that.

Re: Did Mobil 1 already meet dexos1 gen2 [Re: pbm] #4613274
12/24/17 06:38 PM
12/24/17 06:38 PM
Joined: Jun 2015
Posts: 4,225
New England
Virtus_Probi Offline
Virtus_Probi  Offline
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Posts: 4,225
New England
Originally Posted By: pbm
Originally Posted By: Danh
The "old " M1 version probably did. It has been a low-calcium formulation for years, which is consistent with Gen2 specs and, iirc, 2018 GM manuals call for GM-branded oil, an oil meeting dexos1Gen2 OR dexos1 Mobil1.


Yes...that's what I was getting at.
I think that someone using Mobil 1 for the last few years was using a DG2 without even knowing it.


I had settled on using QSUD before learning about LSPI and going back to M1 5W30 (and a few other low calcium XOM 5W30s after that).
I broke my long run of M1 changes with d1G2 Pennzoil Gold 5W30 recently, I know it is marketed as "only" a blend but wemay posted a pretty smokin PDS for it a little while back. Wish I knew its NOACK loss, but at least I know it's 13% or below with the dexos license (the M1 oils I had used varied between about 6-10% NOACK loss by various analyses I found online). I would have tried M1 0W30 if I had found a d1G2 jug, but those haven't showed up around me yet...went with the Gold for this winter changes as it may have had the most impressive CCS and MRV test results I have seen for a 5W30.
It's really nice for me to have d1G2 so I can feel good about picking oils that are not XOM...


2014 Forester XT, 86000 miles
Last Change;
M1 5W30 d1G2
Tokyo Roki 15208AA170 filter
Re: Did Mobil 1 already meet dexos1 gen2 [Re: pbm] #4613475
12/24/17 11:21 PM
12/24/17 11:21 PM
Joined: Jul 2017
Posts: 542
Texas (south)
FermeLaPorte Offline
FermeLaPorte  Offline
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Posts: 542
Texas (south)
As long as they lubricate your engine, I don't see why any oil can't be used on any car. Dexos is just a label.


Always Mobil 1
2014 1.6L Nissan Versa Sedan, 5 spd, 5k OCI.
2011 3.5L Chevrolet Impala, Automatic, 5k OCI.
Re: Did Mobil 1 already meet dexos1 gen2 [Re: FermeLaPorte] #4613618
12/25/17 07:20 AM
12/25/17 07:20 AM
Joined: Sep 2010
Posts: 6,987
Texas
4WD Offline
4WD  Offline
Joined: Sep 2010
Posts: 6,987
Texas
Originally Posted By: FermeLaPorte
As long as they lubricate your engine, I don't see why any oil can't be used on any car. Dexos is just a label.


Can I get those labels on eBay … then put them on Golden State oil bottles and double the price !

Re: Did Mobil 1 already meet dexos1 gen2 [Re: FermeLaPorte] #4614195
12/25/17 09:39 PM
12/25/17 09:39 PM
Joined: Jun 2015
Posts: 4,225
New England
Virtus_Probi Offline
Virtus_Probi  Offline
Joined: Jun 2015
Posts: 4,225
New England
Originally Posted By: FermeLaPorte
As long as they lubricate your engine, I don't see why any oil can't be used on any car. Dexos is just a label.


My car with a direct injection turbo engine was recalled due to LSPI issues...dexos1 Gen 2 is the only standard that tests for an oil's LSPI resistance so I look for it. Subaru also recommends synthetic oil for my engine.
If I still had my RAV4 with its NA V6, I wouldn't care about dexos1. I'm planning to keep my present car for a while, so I choose products that I think help avoid problems with it.


2014 Forester XT, 86000 miles
Last Change;
M1 5W30 d1G2
Tokyo Roki 15208AA170 filter

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