It looks like changing oil weight and putting a different oil cap on the GM 6.2 engines is not going to cut it. Huge mess for owners of the affected vehicles.
GM aborting move to 0w-40
- Thread starter dbias
- Start date
They didn't do it because these engines can't truly run 40 grade as that has been done before including me having over 30k using just 40 grade in my 2021's L87 with no issue from the grade change.
They know it's stupid to try to bandaid it. They know they'll get sued into replacing engines anyway, there's no if ands or buts about it. They tried to be delusional slicks and made themselves think they could get away with a grade change to avoid replacing engines but they came to their senses. Better to be financially smart and replace engines now without having to pay insane greedy lawyer payouts than having to replace engines anyway and after paying out insane lawyer payouts. There's a recent example happening to 4 nissan owners where the lawyers got 99% of the money and the 4 people got literal scraps for money in comparison.
https://www.roadandtrack.com/news/a64700875/nissan-cvt-class-action-lawuit-settlement/
They know it's stupid to try to bandaid it. They know they'll get sued into replacing engines anyway, there's no if ands or buts about it. They tried to be delusional slicks and made themselves think they could get away with a grade change to avoid replacing engines but they came to their senses. Better to be financially smart and replace engines now without having to pay insane greedy lawyer payouts than having to replace engines anyway and after paying out insane lawyer payouts. There's a recent example happening to 4 nissan owners where the lawyers got 99% of the money and the 4 people got literal scraps for money in comparison.
https://www.roadandtrack.com/news/a64700875/nissan-cvt-class-action-lawuit-settlement/
Last edited:
I laughed when he said they are instructing them to put the new engine in and to put the old 0w-20 oil cap back on it.
- Joined
- Jun 2, 2002
- Messages
- 4,560
I have a suspicion that the EPA stepped in and let GM know that they approved the engine for production based specifically on 0W-20 oil and they weren't going to allow them to do an across-the-board oil viscosity grade change without further testing and approvals.
They probably saved 50 cents on an engine doing that.
Quite possible fines and CAFE credits vanishing would ensue driving their loss even higher.
- Joined
- Apr 16, 2024
- Messages
- 202
I think the EPA is only concerned with the output aka fuel mileage and emissions, not the oil grade number itself.
OP, please post a tldr for this. Is the new “fix” that all these vehicles get new engines? I thought the ones with the specific DTC code got a new engine, while everything else got 0w40?
I think GM is worried about the accompanying class action lawsuits and admitting the oil issue is just one more issue for the plaintiffs lawyers to base their lawsuit on.
Does anyone have a link saying GM abandoned the 0w40 change over?
Even the government website says 0W40
https://static.nhtsa.gov/odi/rcl/2025/RCRIT-25V274-6343.pdf
Even the government website says 0W40
https://static.nhtsa.gov/odi/rcl/2025/RCRIT-25V274-6343.pdf
Not watching the video. Is there a GM statement, release on this?
Tie!!!
I sped it up until i saw a document and it's near the end. It has all the things listed for an engine replacement and a switch back to 0w-20 again.
I just updated my post in the link above and even the government website says 0W40
They haven’t updated the recall notice for mine yet. It still shows the oil grade change as the remedy.
Remember: A tie is as good as a loss, and no one remembers second place.
Are there any efforts going on the muzzle CAFE?
It sure looks that way.
There better be.
Similar threads
- Locked
