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Gm dexos 1 spec? #4225093
10/13/16 11:33 PM
10/13/16 11:33 PM
Joined: Mar 2015
Posts: 340
New York
02s4audi Offline OP
02s4audi  Offline OP

Joined: Mar 2015
Posts: 340
New York
What is so special about dexos 1 that gm thinks their vehicles NEED to have? My truck, 2004 silverado 1500, calls for dexos 1 spec. But I'm just wondering what would happen if I didn't run a dexos approved oil? What does an oil have to have to be approved for dexos 1?

Re: Gm dexos 1 spec? [Re: 02s4audi] #4225094
10/13/16 11:36 PM
10/13/16 11:36 PM
Joined: Apr 2013
Posts: 3,504
Portland, OR
Nate1979 Offline
Nate1979  Offline

Joined: Apr 2013
Posts: 3,504
Portland, OR
Originally Posted By: 02s4audi
What is so special about dexos 1 that gm thinks their vehicles NEED to have? My truck, 2004 silverado 1500, calls for dexos 1 spec. But I'm just wondering what would happen if I didn't run a dexos approved oil? What does an oil have to have to be approved for dexos 1?


Says Dexos in your owners manual does it?


2015 GMC Sierra 2500 6.0L
2010 Subaru Forester 2.5X
Re: Gm dexos 1 spec? [Re: 02s4audi] #4225104
10/13/16 11:59 PM
10/13/16 11:59 PM
Joined: Mar 2016
Posts: 1,202
MT
jongies3 Offline
jongies3  Offline

Joined: Mar 2016
Posts: 1,202
MT
GM didn't start running Dexos spec oil until 2011, who told you your 04 needs it? It wont hurt it, but definitely isn't required. I think GM just came up with it to make money, the oil companies have to pay the General a boat load of money to have that little green logo on their bottles. There are supposedly better cleaning additives in Dexos oil because many GM owners were overextending OCI's and sludging up engines which GM was getting stuck replacing under warranty. So now if it happens and they find out you weren't using Dexos oil in your 2011 or newer GM vehicle, they tell you to go whizz up a tree!


2004 Toyota Tacoma 3.4 V6: Mobil 1 AFE 0W-30, FRAM PH3614 filter
1969 Mustang Mach 1 5.8 V8: PYB 10W-30, Napa Gold 1515 filter
2013 Honda 400EX ATV: Mobil 1 Racing 4t 10W-40, OEM filter
Re: Gm dexos 1 spec? [Re: 02s4audi] #4225115
10/14/16 12:25 AM
10/14/16 12:25 AM
Joined: Jan 2013
Posts: 1,503
America's Dairyland
LotI Offline
LotI  Offline

Joined: Jan 2013
Posts: 1,503
America's Dairyland
Your truck was made when they specified 6094M, which is a bunch of oils.

Dexos supersedes that but there's not much special about it. Oil companies pay the royalty and they get a license to be able to sell to Government Motors customers.


03 Honda Interceptor
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Re: Gm dexos 1 spec? [Re: jongies3] #4225116
10/14/16 12:39 AM
10/14/16 12:39 AM
Joined: Aug 2004
Posts: 5,166
Katy, Republic of Texas
blupupher Offline
blupupher  Offline

Joined: Aug 2004
Posts: 5,166
Katy, Republic of Texas
Originally Posted By: jongies3
... There are supposedly better cleaning additives in Dexos oil because many GM owners were overextending OCI's and sludging up engines which GM was getting stuck replacing under warranty. ...

Interesting, I had seen the label on some oil containers, but never really knew what it meant (I did know it was a GM spec).

It is quite annoying though that there are so many different specs. API, ILSAC and ACAE and now Dexos for GM vehicles.
I thought this was the whole reason API was made, to make it easier to get the correct oil shrug.


2018 Hyundai Santa Fe: Delo XLE 10w-30, OEM filter, 3k
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Re: Gm dexos 1 spec? [Re: LotI] #4225119
10/14/16 12:53 AM
10/14/16 12:53 AM
Joined: Sep 2015
Posts: 921
Little Havana, Miami
gallydif Offline
gallydif  Offline

Joined: Sep 2015
Posts: 921
Little Havana, Miami
Originally Posted By: LotI
Dexos supersedes that but there's not much special about it. Oil companies pay the royalty and they get a license to be able to sell to Government Motors customers.

+1. It's all marketing and business.


96 fleetwood 63k dd- MaxLife 5w30, AC Delco pf52
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Re: Gm dexos 1 spec? [Re: 02s4audi] #4225133
10/14/16 01:19 AM
10/14/16 01:19 AM
Joined: Feb 2009
Posts: 17,433
Michigan
daves87rs Offline
daves87rs  Offline

Joined: Feb 2009
Posts: 17,433
Michigan
Pretty much everything is dexos spec'd now anyways...


2019 Chevrolet Equinox LS
2006 Chevrolet Cobalt LS
Re: Gm dexos 1 spec? [Re: LotI] #4225144
10/14/16 03:39 AM
10/14/16 03:39 AM
Joined: Nov 2015
Posts: 1,462
KingCake Offline
KingCake  Offline

Joined: Nov 2015
Posts: 1,462
Originally Posted By: LotI
Your truck was made when they specified 6094M, which is a bunch of oils.

Dexos supersedes that but there's not much special about it. Oil companies pay the royalty and they get a license to be able to sell to Government Motors customers.


wrong

Re: Gm dexos 1 spec? [Re: daves87rs] #4225145
10/14/16 03:39 AM
10/14/16 03:39 AM
Joined: Nov 2015
Posts: 1,462
KingCake Offline
KingCake  Offline

Joined: Nov 2015
Posts: 1,462
Originally Posted By: daves87rs
Pretty much everything is dexos spec'd now anyways...


wrong

Re: Gm dexos 1 spec? [Re: gallydif] #4225146
10/14/16 03:39 AM
10/14/16 03:39 AM
Joined: Nov 2015
Posts: 1,462
KingCake Offline
KingCake  Offline

Joined: Nov 2015
Posts: 1,462
Originally Posted By: gallydif
Originally Posted By: LotI
Dexos supersedes that but there's not much special about it. Oil companies pay the royalty and they get a license to be able to sell to Government Motors customers.

+1. It's all marketing and business.


wrong

Re: Gm dexos 1 spec? [Re: blupupher] #4225147
10/14/16 03:40 AM
10/14/16 03:40 AM
Joined: Nov 2015
Posts: 1,462
KingCake Offline
KingCake  Offline

Joined: Nov 2015
Posts: 1,462
Originally Posted By: blupupher
Originally Posted By: jongies3
... There are supposedly better cleaning additives in Dexos oil because many GM owners were overextending OCI's and sludging up engines which GM was getting stuck replacing under warranty. ...

Interesting, I had seen the label on some oil containers, but never really knew what it meant (I did know it was a GM spec).

It is quite annoying though that there are so many different specs. API, ILSAC and ACAE and now Dexos for GM vehicles.
I thought this was the whole reason API was made, to make it easier to get the correct oil shrug.


Dexos meets and exceeds API SN. Dexos 1 oils will have better noack among other things.

Re: Gm dexos 1 spec? [Re: blupupher] #4225149
10/14/16 03:55 AM
10/14/16 03:55 AM
Joined: Dec 2002
Posts: 42,543
'Stralia
Shannow Online content
Shannow  Online Content

Joined: Dec 2002
Posts: 42,543
'Stralia
Originally Posted By: blupupher
I thought this was the whole reason API was made, to make it easier to get the correct oil shrug.


It's the "American Petroleum Institute", and they are focused in particular areas that are lobbied largely by the US auto manufacturers...the compromises that result aren't acceptable to manufacturers in the rest of the world, and they specify accordingly.

You could use an ACEA spec over an API spec with no mechanical detriment, while you can't say the same of the reverse.

Re: Gm dexos 1 spec? [Re: KingCake] #4225166
10/14/16 05:12 AM
10/14/16 05:12 AM
Joined: Mar 2015
Posts: 5,881
Virginia
bbhero Offline
bbhero  Offline

Joined: Mar 2015
Posts: 5,881
Virginia
Now that's funny KingCake. And you are right about that I believe as well. The spider chart Wemay put up about the Dexos specification shows it is superior to ILSAC GF-5 and API SN in many aspects. Is it as stout as say MB 229.5 or BMW LL-04 or Porsche A40 or C30?? No, of course not. But it is a good middle of the road specification.


Nissan Altima 3.5 Coupe
Mobil Super 5w30 Wix 57356
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Re: Gm dexos 1 spec? [Re: 02s4audi] #4225171
10/14/16 05:26 AM
10/14/16 05:26 AM
Joined: Apr 2012
Posts: 10,496
Kendall, FL
wemay Offline
wemay  Offline

Joined: Apr 2012
Posts: 10,496
Kendall, FL
Definitely not just marketing.





...vs A1/B1



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Re: Gm dexos 1 spec? [Re: 02s4audi] #4225230
10/14/16 07:53 AM
10/14/16 07:53 AM
Joined: Mar 2015
Posts: 340
New York
02s4audi Offline OP
02s4audi  Offline OP

Joined: Mar 2015
Posts: 340
New York
I just always wondered what was special about dexos. You are correct my truck doesn't spec dexos but it does spec gm 6094m which has been changed to dexos 1.

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