Gen 2 dexos
- Thread starter NHRATA
- Start date
- Status
This is about all I could find on it. http://passenger.lubrizoladditives360.com/specifications/oem-dexos/
Heres a good write up. https://www.oronite.com/pdfs/pc11_dexos.pdf
Wonder if we will see reduced calcium and more magnesium/sodium formulations?
Heres a good write up. https://www.oronite.com/pdfs/pc11_dexos.pdf
Wonder if we will see reduced calcium and more magnesium/sodium formulations?
Glad I won't be buying a new vehicle for quite some time.
Interesting comment in the Onorite article re LSPI in DI engines: "Automakers have mitigated LSPI by introducing additional fuel at the points where LSPI is likely to occur."
So, if you have a DI engine with fuel dilution issues, there's a good part of the reason why. This implies traditional knock sensors don't detect LSPI, fuel is added based on likliehood of LSPI rather than actual occurrence and running a higher octane fuel would not make a difference. And with ultra-high gearing in some DI/transmission combinations (e.g. CVTs), conditions "...where LSPI is likely to occur." may encompass a pretty wide spectrum of conditions including highway cruising. Highway driving used to be wher fuel dilution was least-likely to occur; this logic may now be upside-down. Matches my experience, anyway...
May be a good time to grab one of the past port-injected new cars and keep it until this stuff has matured.
So, if you have a DI engine with fuel dilution issues, there's a good part of the reason why. This implies traditional knock sensors don't detect LSPI, fuel is added based on likliehood of LSPI rather than actual occurrence and running a higher octane fuel would not make a difference. And with ultra-high gearing in some DI/transmission combinations (e.g. CVTs), conditions "...where LSPI is likely to occur." may encompass a pretty wide spectrum of conditions including highway cruising. Highway driving used to be wher fuel dilution was least-likely to occur; this logic may now be upside-down. Matches my experience, anyway...
May be a good time to grab one of the past port-injected new cars and keep it until this stuff has matured.
Last edited:
Originally Posted By: NHRATA
I couldn't find any information on it on the PIOA site.
I wouldn't think you would, nor should you in the near future. I certainly can't speak for the PQIA, but their job isn't to provide us VOAs; it's to do some spot checking to ensure compliance with label claims. Given that AC Delco oil is sold almost exclusively at GM parts counters, it's made for General Motors, and its primary claim to fame is a paid GM specification, it's really up to General Motors to ensure that it complies with its label claims.
I couldn't find any information on it on the PIOA site.
I wouldn't think you would, nor should you in the near future. I certainly can't speak for the PQIA, but their job isn't to provide us VOAs; it's to do some spot checking to ensure compliance with label claims. Given that AC Delco oil is sold almost exclusively at GM parts counters, it's made for General Motors, and its primary claim to fame is a paid GM specification, it's really up to General Motors to ensure that it complies with its label claims.
waiting for the Lubrizol comparison tool
At first this Gen 2 dexos1 certification sounds like another way for GM to make money on a "new" dexos certification that was not needed. But I have been wrong before. This is a global shift to motor oils lighter than 0w20 such as 0w8. This shift to lighter oils is driven by 2025 fuel economy requirements (54.5 mpg). For me the most important part is that the improved fuel economy of these lighter GF-6B oils will last over a longer oil change interval, which says "durability" and is a very good thing... assuming all other aspects can last longer too (oil filters, additive packages, etc etc). Not going to open that can of worms but the new dexos specs will be interesting to see how the story plays out.
This thread is a good on-point question about the additive pack, which I know nothing about but will be interested to learn.
This thread is a good on-point question about the additive pack, which I know nothing about but will be interested to learn.
I as well as I continue to use 10w30.
It does make sense to be coming out with a revised dexos1 package with GF-6 coming down the horizon. It certainly makes a lot more sense than waiting for GF-6 to be loaded for shipping and then running to the truck with a binder containing the new specifications and yelling, "Wait!" like someone else essentially did.
- Status
Similar threads
