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Dexos 1 Gen 2---Any Differences? #4506833
09/03/17 10:47 PM
09/03/17 10:47 PM
Joined: Sep 2011
Posts: 452
IL
lukejo Offline OP
lukejo  Offline OP

Joined: Sep 2011
Posts: 452
IL
Of the oils that will be certified with this spec, assuming 90% of daily drivers in the US (nothing exotic), assuming normal to conservative OCI's, is there any reason other than price to choose one brand over another?
My example: I really like Valvoline Full Syn w/Ml. However, a recent thread on here concluded that it had a substantially lower quality base oil than Mobil 1 and Pennzoil synthetics. If my VFSML is Dexos 1 Gen 2, then it will keep my engine as clean and protected as it would ever need to be and within ridiculously small differences as compared to M1 PP, etc..
Correct?

Re: Dexos 1 Gen 2---Any Differences? [Re: lukejo] #4506839
09/03/17 10:54 PM
09/03/17 10:54 PM
Joined: Apr 2010
Posts: 13,555
Plano, TX
dparm Offline
dparm  Offline

Joined: Apr 2010
Posts: 13,555
Plano, TX
The official answer for how gen 2 is better:


The most current dexos1 specification (dexos1 Gen 2) was released in 2015 to provide even higher engine performance and protection, particularly low speed pre-ignition (LSPI) protection in small displacement turbo-charged engines. dexos1 Gen 2 is the best option for your GM spark-ignited gasoline engine regardless of make, model or year.



All else being equal (namely price and availability), I would go for a gen 2 over a gen 1. Only exception might be if you are in a fringe use case.


2017 Chevrolet Corvette Grand Sport
Re: Dexos 1 Gen 2---Any Differences? [Re: lukejo] #4506844
09/03/17 11:06 PM
09/03/17 11:06 PM
Joined: May 2006
Posts: 4,079
Central Wisconsin
dwendt44 Offline
dwendt44  Offline

Joined: May 2006
Posts: 4,079
Central Wisconsin
Gen 2 is very close to full synthetic.
Even the newest transmission fluid is full syn.


There's no such thing as:
Too big of a battery,
Too large of a gas tank,
or too loud of a horn,
or too bright headlights.
Re: Dexos 1 Gen 2---Any Differences? [Re: lukejo] #4506979
09/04/17 07:18 AM
09/04/17 07:18 AM
Joined: Dec 2003
Posts: 10,088
Florida, Cape Coral
Eddie Offline
Eddie  Offline

Joined: Dec 2003
Posts: 10,088
Florida, Cape Coral
I checked my Pennzoil 0w20 & 0w30 and it is only Gen 1. What are the major GEN 2 oils? Ed


CX5 Touring 2.5L :-)
Re: Dexos 1 Gen 2---Any Differences? [Re: lukejo] #4506981
09/04/17 07:19 AM
09/04/17 07:19 AM
Joined: Jun 2011
Posts: 1,833
Crawfordville FL
SilverFusion2010 Online content
SilverFusion2010  Online Content

Joined: Jun 2011
Posts: 1,833
Crawfordville FL
M1 AP has a gen2 license


2010 Ford Fusion SE 3.0L V6, 181 miles M1 HM 10w-30
Re: Dexos 1 Gen 2---Any Differences? [Re: lukejo] #4506982
09/04/17 07:20 AM
09/04/17 07:20 AM
Joined: Apr 2004
Posts: 7,956
New York
pbm Online content
pbm  Online Content

Joined: Apr 2004
Posts: 7,956
New York
If you "really like" VML FS then I see no reason not to use it....it is an excellent oil.
I'd bet that any brand of FS dexos1 gen 2 oil will keep your engine running great for as long as you care to own that vehicle....in other words...they are all very good.
I'm guessing that the latest dexos spec. cuts back on calcium to help prevent LSPI. If your car is not a turbo, you would be served well by buying up the old dexos oil at a discount IMO....


'Journalism is Dead'
Re: Dexos 1 Gen 2---Any Differences? [Re: lukejo] #4507070
09/04/17 09:51 AM
09/04/17 09:51 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 was a little confused about this. I did a little reading from the link to http://www.centerforqa.com/dexos-about/
dexos 1 Gen 2 and dexos 2 are not the same. dexos 2 is the euro standard and a different list of approved oils.

Speaking to the calcium, it is kind interesting that the M1 oils that I can find calcium data on have pretty low calcium, whereas it doesn't appear(yet) that the other USA manufacturers have dropped thiers en masse(yet). We will see with the new GF-6 next year.

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