It would be interesting to know how close the Dexos 1, Gen 2 oils come to meeting the specs for Gen 3.

 

Graph from the second link.

https://gm-techlink.com/wp-content/uploads/2021/12/F04-dexos-image-2.png

 

I can't wait until they also have Dexos 2, Gen 3.

 

Doesn't look like Mobil has updated their site yet, but I suspect Mobil 1 EP will be the one to get gen 3. dexos1 gen 3 was announced a while ago and the transition date (all proper dexos 1 oils must be gen 3) is Sep 1, 2022. So there's still a bit of time for oil companies to get things done.

 

Per the article, "The transition from the current dexos1 Gen 2 to Gen 3 will be a running change and as the old product is sold down, new product will be supplied." Mustn't be too critical.

Honestly, is seems synonymous of the API specification, only GM got on board with their own.

 

I'm done.
This is good enough

 

That stuff would be life time oil and never need replacment lol

 

Is there a list? How does one know? Wait for it to show up on the shelf?

 

Click the first link in the original post...

Sent from my SM-G986U using Tapatalk

 

Thank you sir^^^

Guess it's just wait for availability now.

 

Ah, Dexos! The Dexos 1 logo that kind of looks like "2" when glancing at it. Then there's multiple generations of Dexos 1, up to Gen 3. And Dexos 2 for light duty diesels, and Dexos D, also for light duty diesels.

Hey GM, could you clean it up a little bit? I miss the days of buying a name-brand oil weight off the shelf and not having to worry about which brands meet spec but aren't licensed, or finding the correct licensing with a brand I generally trust.

 

What is with the fascination with Mobil 1? What is special about it that any other oil, especially one approved by GM’s Dexos approval list, can not do? … out of curiosity?

 

It was one of the first synthetic oils available, so I think that familiarity helps. I've used a lot of Mobil-1 over the years, and am running it in the wife's Subaru, but I switched my Duramax to Pennzoil this last time just to see if I'd get slightly less oil consumption. Mobil-1 is known for allowing oil consumption on some engines, but I've not usually had a problem.

 

I'd like to know the fascination to that myself.

 

Of course there are plenty of good oils out there. Personally I am looking for the oil that burns the cleanest and leaves the fewest deposits on the valves and combustion chambers and pistons, and provides the best timing chain lubrication. That might likely be Pennzoil or it might be one of the Mobil 1 variants, or one of many other good brands. Oils are so good these days that very few folks actually keep their vehicles long enough to wear out the bearings, crank, cam, cylinder walls, or rings. Usually when there is an engine failure it is something broken that has nothing to do with the oil. I'll certainly agree that on any forum the oil threads attract lots of opinions!

 

Mobil 1 ESP 0W40.

I’m going to walk away now and plug my ears.

But there is definitely an argument to using a euro/diesel oil. Aka a dexos 2 oil…On the 3.6L.

 

Re Mobil 1:
When you've used a product for more than three decades with perfect results, you tend gain some confidence in it. Possibly a little superstition as well.

Btw, Dexos and Mobil 1 are both listed in my 2022 owners manual. I'll stay with Mobil.

 

Do you think Mobil 1 has always been exactly the same formula? I doubt it. Anyway, GM oils are provided by Mobil. Does that count as staying with Mobil?

 

From what I've seen.

Gas consumption is 25% higher.

 

LOL.. Good one

 

Forget about Gen 3 as it is a stop gap measure for the introduction of Gen 4 which is due out in 2025. Gen 4 will increase service life to 25,000 miles, reduce gas consumption by 36%, eliminate engine wear, cost only $1.59 per quart and go great with pancakes and ice cream.

 

Great source if you are into oil specs and testing......

The Petroleum Quality Institute of America

pqia.org

 

Generally speaking, moving up or down a viscosity grade compared to what the mfr recommends is acceptable, going up or down two (40 -> 20 or vice-versa) is generally risky but "it depends."

At the very least, these days doing that can actually trigger a CEL due to VVT/VCT phasers or MDS/DOD/AFM solenoids not responding properly which ends up triggering the CEL. This is something people were warned about but had to learn the hard way with the Gen III 5.7 HEMI with MDS. They would think "My R/T should get the same oil as the SRT8 because I drive it like I drive an SRT8." So they'd go and put 0w-40 in place of the mfr spec 5w-20 and end up with a CEL a little way down the road because the MDS wasn't operating within spec anymore. Put the proper oil in and no more CEL.

I don't think you'll find a manufacturer out there that will list two acceptable oils that are 2 grades apart for multiple reasons.

 

I don't think you'll find a manufacturer out there that will list two acceptable oils that are 2 grades apart for multiple reasons.

I don't recall manufacturers complaining, but then Mobil was basically becoming the warrantor of oil related failures for engines using Mobil-1, so why would they complain?

BTW, I think I remember all of this stuff from magazines--Car & Driver, Popular Science, etc. But some stuff from back then I had no idea how I knew it without the Internet--like how there was a book purportedly written by Kilgore Trout.

 

And lest we forget if you have an older engine (like pre-catalytic converter flat tappet) really good idea to add some zinc back in. This is one of those rare cases where an additive really does help.

https://www.autozone.com/diy/motor-oil/zinc-additives-in-motor-oil-and-how-they-help

 

Gm uses acdelco.

The dealers use mobil1.

I don't remember mobil commercials.

I do remember the great debate between quaker and pennzoil. Back in the 70s

 

Gm uses acdelco.

ACDelco is GM's brand which is just a re-brand, usually Mobil. GM doesn't make their own lubricants. So saying GM uses ACDelco doesn't say who actually makes the oil in the bottle.

EDIT: Actually, it looks like Philips 66 is the OEM for ACDelco dexos 1 oils currently.

Product Identifier: ACDelco dexos1™ Full Synthetic Motor Oil (NXGN) SAE 5W-30
Other means of identification: 88865905, 88865906, 88865743, 88865763
Code: 831070
Issue date: 10-Jun-2021
Relevant identified uses: Automotive Engine Oil
Uses advised against: All others
24 Hour Emergency Phone Number: CHEMTREC Global +1 703 527 3887
CHEMTREC United States 1-800-424-9300
CHEMTREC Mexico 01-800-681-9531
Manufacturer/Supplier: Phillips 66 Lubricants
A Division of Phillips 66 Company
P.O. Box 421959
Houston, Texas 77242-1959

 

All these oil threads makes my head hurt......

 

I use oil from a deep fryer at a local fast food joint.....ish runs solid AF and smells like French Fries when I go by.....

 

I sort-of-kinda-maybe-I-suppose see the Mobil 1 thing as being a source of confidence. I ran my Cummins for 16 years and all but two oil changes were Valvoline; either conventional or synthetic. I only used it because Cummins had a longstanding relationship with Valvoline and there were thousands of engines out there that used it with no problems. My conventional oil changes were at 7500, and my synthetic changes were shy of 15000 based on random TBN analyses. I didn't have a single internal engine issue. However... I'll never know what another oil brand would have done, or not done.

Before I replaced the engine in my Jeep, I had more than 150,000 miles using mostly Havoline and other various name-branded oils. And, we're talking oils dated back to the late 80s. I read some of the oil specs that someone posted a link to in this thread. Some had lower anti-ware additives of one chemical and higher of another, and some visa-versa. Some had a slightly lower TBN and some a little higher. I'm not a chemist or engine builder, so it is really difficult for me, a common guy, to make a determination of which oil is best.

I scheduled my first free oil change in June, one week before the free oil change offer expires. My Canyon will have its first birthday back at the dealership. Afterwards, I think for this truck I will use the least expensive current API-rated oil that GM approves and leave it at that.

 

Just FYI I ordered two 5 qt containers of Mobil 1 full synthetic 5W-30 on Amazon. Photo of container showed Dexos1 Gen 3, but I received Dexos2 gen2. They made it right, but careless listing editing.

If the jug in the listing below does not show Dexos1 Gen3 then they fixed it......or pulled the wrong product for my order

Amazon.com: Mobil 1 Advanced Full Synthetic Motor Oil 5W-30, 5 Quart : Automotive

Buy Mobil 1 Advanced Full Synthetic Motor Oil 5W-30, 5 Quart: Motor Oils - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

www.amazon.com

 

Has anyone actually seen it on the shelf yet?

Looks like the gen 2 expires September 1.

 

I have not. I've been looking for it. I'm still using Dexos 1 Gen 2 in my 5.3.

 

Is there even a difference beyond the bottle?

 

Guess we'll find out if it ever comes out.

There's an article that says less sludge and wear protection. But protects against LSPI and cat poisoning better.

Dated January 2021.