Dexos liscensing isn't THAT difficult to get.

Pennzoil motor oil
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Originally Posted By: Bottom_Feeder
Originally Posted By: OneEyeJack
...and not one customer ever heard of PQIA or the SAE and the cashier was all in trying to hit the right buttons on the cash register. So, now we have DEXOS and it's a very good idea for the uninformed public and the vehicles they drive.

So if the uninformed public doesn't know anything about PQIA, SAE, API, etc, why would they know anything about what Dexos is?


The bottle can be labeled DEXOS for GM vehicles and when the 7-Eleven customer is picking up their 18 pack and a quart of oil to top things off they can get the correct oil.

One quart of no-name non-approved oil might just harm the engine and this new label would help.
 
Originally Posted By: ExMachina
Originally Posted By: Garak
Originally Posted By: GM4LIFE
It's all about the money when it comes to GM's Dexos approval and licensing. It has little to do with motor oil performance. This Dexos [censored] is all B.S.

I doubt that GM is making money hand over fist from dexos fees. In any event, people are free to vote with their wallets. Don't buy a GM product. Don't buy a dexos licensed product.


The dexos spec is real, a higher performance level than SN-GF5 oils, and a good step in the right direction. Its mostly about consolidating several oil specs from Europe and the U.S. into one worldwide spec. The royalty system is criminal, and amounts to about 9 cents a quart, depending on market volume of the oil a little bit, but still around 9 cents/quart to display the dexos symbol. Wise owners will want to use a full synthetic that is at least dexos1, while the average owner should be content with the cheapest dexos flavor they happen to get.


What was the development cost and what is the ongoing operating cost for the Dexos1 and 2 program including future spec improvement that is coming next year? Without knowing this how can you draw a conclusion?
 
Lubrizol's "cookbook recipe" for a dexos1 engine oil requires at least 75% GroupIII (synthetic) oil, when using their additive chemicals:

LY1nAGz.jpg


((((Note: Any company, including in our bathtubs at home mixing stuff, can make our own dexos1 oil if we buy Lubrizol's PV1202, 7075, & the basestocks they tell us to.))))

Lubrizol's 75% GroupIII suggestion does seem to run counter to what we THINK Pennzoil might do by selling a 50% GroupIII dexos1 semi-syn (???).

The link for that image is: http://www.pceo.com/101510_EO_PV1202_AR.pdf
 
Last edited:
Originally Posted By: ExMachina
Originally Posted By: Greasymechtech
The specs are real. Cash grab is optional.
I have no problem with meets or exceeds.

https://www.lubrizol.com/apps/relperftool/pc.html
http://www.centerforqa.com/gm/dexos1-brands
http://www.gf-5.com/the_story/performance/

In the 2nd link above, anyone notice all the conventional oils that are Dexos1 approved?

NO conventionals are dexos1 approved. Only semi-syns and full synthetic oils.

That's what I always heard, but Peak is on that list. As far as I know, it's a conventional conventional oil.
 
Originally Posted By: faramir9
.
That's what I always heard, but Peak is on that list. As far as I know, it's a conventional conventional oil.


You've always heard right. Thats Peak Synthetic that gets dexos1, not their conventional oil.
A conventional oil can be disqualified through the dexos1 NOACK limit of 13%, and then might fail anyway due to too much deposits, sludging tests, its hard to tell all what.
It shouldn't be impossible for a conventional oil to achieve dexos1, but just not any now.
And the dexos specs are 1 year away from getting even more stringent, so don't bet on conventionals making the cut. A breakthrough in additives could happen though!
 
Originally Posted By: CKN
I have a 2011 Silverado with the 5.3 that requires dexos. I believe the dexos requirement started in 2010(maybe 2009) for the 5.3. According to the Silverado forums there haven't been any changes to the 5.3 that would make it require dexos over the previous years where they don't.

This is according to some service techs who do contribute to the boards.

Of course, in 2014 there were substantial changes to the motor that may need the dexos requirement.


The 5.3L with AFM is essentially the same from 2007 to 2013.
 
100% Group II+(high end groupII) might be able to meet dexos1.
Seems that SOPUS does it with 50%(guessing GTL or XHVI select group III's) and Lubrizol recommends 75% synth. Might be the difference in the performance of various basestocks. Seems that full synthetic groupIII should exceed the spec, with some room for base oil variance.

Anyone want to guess the ratio of a PAO groupII dexos blend?

Time to abandon conventional motor oil. We can convert the consumer to synthetic without using that costly negative marketing word.

Some synthetics:
0w20
0w30
0w40
5w50
5w40
10w60
Dexos
HTO-06
....

Fancy spec easier to digest than 'synthetic', especially with OLM and extended interval.
 
Originally Posted By: CKN
I have a 2011 Silverado with the 5.3 that requires dexos. I believe the dexos requirement started in 2010(maybe 2009) for the 5.3. According to the Silverado forums there haven't been any changes to the 5.3 that would make it require dexos over the previous years where they don't.

This is according to some service techs who do contribute to the boards.

Of course, in 2014 there were substantial changes to the motor that may need the dexos requirement.


The Dexos 1 spec was put into effect on ALL GM vehicles during the 2011 model year, but starting the second half of the 2010 calendar year. The GM Dexos 1 spec oil can be used in older model GM vehicles as well with no issues. There was a bulletin that stated this that I read. It's a retroactive oil.
 
Originally Posted By: Greasymechtech
100% Group II+(high end groupII) might be able to meet dexos1.
Seems that SOPUS does it with 50%(guessing GTL or XHVI select group III's) and Lubrizol recommends 75% synth. Might be the difference in the performance of various basestocks. Seems that full synthetic groupIII should exceed the spec, with some room for base oil variance.

Anyone want to guess the ratio of a PAO groupII dexos blend?

Time to abandon conventional motor oil. We can convert the consumer to synthetic without using that costly negative marketing word.

Some synthetics:
0w20
0w30
0w40
5w50
5w40
10w60
Dexos
HTO-06
....

Fancy spec easier to digest than 'synthetic', especially with OLM and extended interval.





How is synthetic when being referred to oil a negative?
 
Originally Posted By: stchman
Originally Posted By: Greasymechtech
100% Group II+(high end groupII) might be able to meet dexos1.
Seems that SOPUS does it with 50%(guessing GTL or XHVI select group III's) and Lubrizol recommends 75% synth. Might be the difference in the performance of various basestocks. Seems that full synthetic groupIII should exceed the spec, with some room for base oil variance.

Anyone want to guess the ratio of a PAO groupII dexos blend?

Time to abandon conventional motor oil. We can convert the consumer to synthetic without using that costly negative marketing word.

Some synthetics:
0w20
0w30
0w40
5w50
5w40
10w60
Dexos
HTO-06
....

Fancy spec easier to digest than 'synthetic', especially with OLM and extended interval.





How is synthetic when being referred to oil a negative?

Synthetic generally means "more expensive". That's a negative for a lot of consumers. The same as "Premium Fuel Required" on a gas cap.
 
While "synthetic" oil is more expensive initially, in the long run it ends up being less expensive as the change interval is longer.
 
Yes, stchman! That rule of thought may just save us. Spend a fair (re: not cheap) amount up front for a better product which lasts longer and performs better AND you get to spend less down the road.....among other possible positives.
 
The quality will be remembered long after the price is forgotten.

Sir Henry Royce.

Probably paraphrasewd but I used that a lot a hundred years ago while selling Xerox machines...

:-)
 
Originally Posted By: stchman
While "synthetic" oil is more expensive initially, in the long run it ends up being less expensive as the change interval is longer.
Originally Posted By: mjoekingz28
Yes, stchman! That rule of thought may just save us. Spend a fair (re: not cheap) amount up front for a better product which lasts longer and performs better AND you get to spend less down the road.....among other possible positives.

Except when maintaining warranty coverage means draining oil way before synthetic extended oil drain benefits come into play.
Example - my 2013 Sonata has a 3,750 mile OCI warranty requirement (Canada specific) Pennzoil Conventional is just fine in my application at $14 a jug.
 
I am of the opinion that dexos was created to reduce the common and expen$ive cam chain repair on the 3.6 engine. They could admit they screwed up when the made the cam chain narrower and go back to the wider chain. Of course, it is GM. Also to reduce failures of the AFM V8 system.

Comments?
 
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