GM now saying to use 0w40 in 21-24 6.2L

Well, who has actually contacted their dealership about this and got direct confirmation that this recall is real. So far I've seen over 20 secondary regurgitations and one page with a funky home made GM logo. Typing the " recall" number does not yield anything directly from GM. And please don't quote the " GM Authority" page.

If its real, let's see an actual letter from GM. Otherwise its just a thickie fantasy, especially about the part where they give you a new 710 cap that says 0W40. Radiation suit on. ;)
I’ll check tomorrow when I go to work
 
Well, who has actually contacted their dealership about this and got direct confirmation that this recall is real. So far I've seen over 20 secondary regurgitations and one page with a funky home made GM logo. Typing the " recall" number does not yield anything directly from GM. And please don't quote the " GM Authority" page.

If its real, let's see an actual letter from GM. Otherwise its just a thickie fantasy, especially about the part where they give you a new 710 cap that says 0W40. Radiation suit on. ;)
It shows in the recall section of my GM app for our 2024 Yukon XL.

IMG_8868.webp
 
I can’t see why it has to be 0w40. There’s lots of 5w40 API SQ’s and several that meet all the Euro standards.
For example, Havoline has two pcmo offerings in 5w40 plus one 0w40. Of the three, I like the looks of the 5w40 SQ the best.
Not that I listen to my own advice, I have six jugs of 0w40 M1 FS in my stash I bought on sale last summer.
I better find something to put it in before it goes bad.
 
I can’t see why it has to be 0w40. There’s lots of 5w40 API SQ’s and several that meet all the Euro standards.
For example, Havoline has two pcmo offerings in 5w40 plus one 0w40. Of the three, I like the looks of the 5w40 SQ the best.
Not that I listen to my own advice, I have six jugs of 0w40 M1 FS in my stash I bought on sale last summer.
I better find something to put it in before it goes bad.
They also have a 5W-50 dexos r so I imagine 5w is criteria for dexos r unless it's specifically for 50 grade but I can't find a dexos r spec sheet.
 
MOD NOTE:
Two threads with same topic have been merged as of 4-25-25 ...
Guy - please check before you post duplicate topics



In the L87 engines GM will be replacing your 0w20 oil with 0w40.
View attachment 275341
"In the L87 engines GM will be replacing your 0w20 oil with 0w40."

But I thought the smart engineers designed the engine tolerances specifically for 0-20.... I thought the owner's manual said to put 0-20, and that is the bible, you know?.... I thought the gov CAFE plan had it all figured out with their mandates and fines and EV mandates on automakers... geez, I guess I was wrong..... hahahahahaha.....
 
"In the L87 engines GM will be replacing your 0w20 oil with 0w40."

But I thought the smart engineers designed the engine tolerances specifically for 0-20.... I thought the owner's manual said to put 0-20, and that is the bible, you know?.... I thought the gov CAFE plan had it all figured out with their mandates and fines and EV mandates on automakers... geez, I guess I was wrong..... hahahahahaha.....
You will see a domino effect very soon, automakers ditching the ridiculously thin oil recommendations.
 
"In the L87 engines GM will be replacing your 0w20 oil with 0w40."

But I thought the smart engineers designed the engine tolerances specifically for 0-20.... I thought the owner's manual said to put 0-20, and that is the bible, you know?.... I thought the gov CAFE plan had it all figured out with their mandates and fines and EV mandates on automakers... geez, I guess I was wrong..... hahahahahaha.....
I may be a machining debris in the crank passages leftover after rinsing/flushing as far as anyone can tell.
I don't recall the L86 having a TSB. That specs 0w-20. Many of them out there working with high miles.
 
If FS does start to get some DexosR labeling on the bottles, and it being on that approval list isn’t just some sort of oddity… could this be the perfect price/approval-having/performance combination product for the Gen V?
 
Well that pretty much confirms it. But what does Incomplete Remedy Not Available mean?
Google - "Remedy Not Yet Available" on a vehicle recall check means an issue has been identified and a recall is in effect, but the manufacturer hasn't released the necessary fix or parts yet. This signifies an ongoing recall where the remedy is still pending.
 
Back
Top Bottom