Dexos 1 Gen 2 question???

[tsmay51]

I purchased a new Silverado back in January. I bought a couple cases of Napa Synthetic 0W-20 last month when it was on sale. It carries the Dexos cert but now I see there is a Generation 2 cert of Dexos 1. The original cert is to be obsolete in Sept 2017. If I was to have an issue in the next year with the truck is GM going to recognize that this is/was a proper oil to use? 24qts is 3 oil changes and about a year or more for me. Well past Sept of this year.

 

[LotI]

They wouldn't have a clue unless you told them

 

[OneEyeJack]

+1

 

[smithph]

+2 Dexos1 Gen1 was in effect when you purchased your truck. Besides I do not think those come with a TDI micro engine that might benefit from a Dexos1 Gen2 oil.

 

[Tman220]

Dexos 1 oil is what your owners manual recommends, it fulfills the minimum requirements, quit worrying.

Its the same as when someone on this site stresses over what oil to put in their 1996 Camry, when the fact is every single name brand name oil on the market today FAR! exceeds any oil available in 1996.

 

[bigt61]

Originally Posted By: Tman220
Dexos 1 oil is what your owners manual recommends, it fulfills the minimum requirements, quit worrying.

Its the same as when someone on this site stresses over what oil to put in their 1996 Camry, when the fact is every single name brand name oil on the market today FAR! exceeds any oil available in 1996.

Amen.

 

[Virtus_Probi]

I'm sure there's going to be plenty of last gen dexos1 oil for sale after 9/17, and probably plenty of it used at GM dealerships after that date, as well. It's going to take a long time to flush that "old" oil out of the system.

 

[Bgallagher]

As long as your manual says it you are good with gen 1. I spoke to a local dealership and for their 2 free oil changes with purchase are the gen 1 but if you went in and asked for a similar package they would use the new gen 2. Probably so they can use up their old tank prior to refilling. Both are Delco Dexos oil

 

[oil_film_movies]

Good question. The thing with "dexos1" is that the label on the oil bottles will not change going to Gen2. So the consumer won't have a way to tell what he's got, gen1 or gen2 flavors, its all just "dexos1". Unless they decode the cryptic factory date stamp and figured it out based on calling the oil company.... sheeesh....

Autozone (and maybe others) is famous for buying old stocks of leftover oil. I've seen 7 year old Pennzoil synthetic on the shelf at Autozone for example. Ebay will be even worse at this as old stashes get cleared out like a friggin' garage sale... or actual garage sale oil... LOL

Therefore, GM certainly can never deny a warranty claim on an engine failure because a customer accidentally grabbed an off-the-shelf old stock (NOS) dexos1. !!!

 

[Virtus_Probi]

Originally Posted By: oil_film_movies
Good question. The thing with "dexos1" is that the label on the oil bottles will not change going to Gen2. So the consumer won't have a way to tell what he's got, gen1 or gen2 flavors, its all just "dexos1". Unless they decode the cryptic factory date stamp and figured it out based on calling the oil company.... sheeesh....

Autozone (and maybe others) is famous for buying old stocks of leftover oil. I've seen 7 year old Pennzoil synthetic on the shelf at Autozone for example. Ebay will be even worse at this as old stashes get cleared out like a friggin' garage sale... or actual garage sale oil... LOL

Therefore, GM certainly can never deny a warranty claim on an engine failure because a customer accidentally grabbed an off-the-shelf old stock (NOS) dexos1. !!!


I thought we had figured out here that the symbol on the bottles would change?
If you look up the Gen 2 list, there is a new symbol on that webpage.

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

 

[blupupher]

No different than when the change from SM to SN (or SL to SM etc) happened. The oil that was the requirement for your vehicle at time of manufacture is what you need to keep warranty intact. Oils are always backwards compatible (but not always necessarily "better") when standards are updated.

Now the chances of having an oil related problem in a vehicle with regular oil changes are almost none.

 

[tsmay51]

I would not be concerned too much about what I was putting in a 1996 Camry that is way out of warranty. Considering a new truck and wanting to not have some issues with a dealer down the road has some validity. I am not a fan of the whole Dexos thing but I bought a Chevy and plan on doing what is necessary to keep from having issues with a dealer if a problem occurs.

 

[ARCOgraphite]

Wow. 0w20 in a chevy V8 now.

 

[Brigadier]

Originally Posted By: ARCOgraphite
Wow. 0w20 in a chevy V8 now.


Gotta make those CAFE numbers.

 

[TiredTrucker]

Just because a specification is getting superseded by a new one, your vehicle was built under the Gen 1. Just use any 'ol dexos1 oil and ignore what GM is up to. Some of us have never used a "approved" dexos1 oil in our GM vehicles and haven't had any problems. My 2013 Silverado never saw a "approved" dexos1 oil outside of the factory fill, and my 2015 Silverado 2500 hasn't seen a "approved" dexos1 oil outside of the factory fill. Even my 2006 Cadillac CTS 3.6 that GM called for M1 5w30 has gotten Pennz conventional 10w30 for quite a while and hasn't complained a bit. Will keep that one for a lot longer yet. Great car. Seems the auto makers like to play on people's fears. Just get the latest API / ILSAC spec and the rubes at the dealership wouldn't know the difference.

 

[Tman220]

Originally Posted By: tsmay51
I would not be concerned too much about what I was putting in a 1996 Camry that is way out of warranty. Considering a new truck and wanting to not have some issues with a dealer down the road has some validity. I am not a fan of the whole Dexos thing but I bought a Chevy and plan on doing what is necessary to keep from having issues with a dealer if a problem occurs.


I would encourage you to read your owners manual then, because, apparently I have beat you to it. Your owners manual states that DEXOS approved oil is required, it makes no distinction between Gen 1 or Gen 2.

To also relax your mind a bit, regardless of the engine you have, there has been zero changes to them since their introduction in 2014, DEXOS 1 Gen 1 was good enough then, and its good enough in your 2017.

 

[Solarent]

Originally Posted By: LotI
They wouldn't have a clue unless you told them


Actually this isn't true. The specification and chemistry has changed significantly since the upgrade to 2nd generation. Even a cheap UOA would be able to tell them apart. It would be pretty easy for GM to run a sample on a failed engine and see if the product meets the requirements.

That said, the changes to the Gen2 specification address timing chain wear and LSPI mostly. If your engine doesn't need to worry about these issues then it should be fine.

 

[slacktide_bitog]

Your engine doesn't require the gen2, so no problems

 

[oil_film_movies]

Originally Posted By: Virtus_Probi
I thought we had figured out here that the symbol on the bottles would change?If you look up the Gen 2 list, there is a new symbol on that webpage. http://www.centerforqa.com/dexos-brand2015/
OK, I see your point. It looks almost the same as the old dexos1 logo, except there is a smaller font Gen 2 info there for the consumer to see.
Maybe GM will demand owners use Gen 2 only starting with the 2018 models this fall.(?????) And if you grab NOS Gen1 by mistake for your new 2018, and then have a warranty claim, will GM care?
Of course, 2017 models can use Gen1 or Gen2, no problem.

 

[NH73]

Originally Posted By: tsmay51
I purchased a new Silverado back in January. I bought a couple cases of Napa Synthetic 0W-20 last month when it was on sale. It carries the Dexos cert but now I see there is a Generation 2 cert of Dexos 1. The original cert is to be obsolete in Sept 2017. If I was to have an issue in the next year with the truck is GM going to recognize that this is/was a proper oil to use? 24qts is 3 oil changes and about a year or more for me. Well past Sept of this year.
Like everyone said, what are you worried about? GM would have to honor your warranty because you are using an oil they approved to use. Your case of oil was made before it was obsolete. Use it up like you plan to and relax.