Is this the deal where GM said their factory fill light karo syrup 0W20 was too thin so to avoid 'loss of propulsion' put proper 40 grade in instead ? 😵‍💫🤦

I'd dump that 20 like a bad habit and refill with whatever FS 40 grade you can find a good price on. I only run 0w40 in my truck.

So yes, for all GM knows is it has whatever crap they filled it with at the factory.

 

If a defect exists its unlikely any oil is going to solve the problem, delay maybe? Your would think if there is a defect that leads to blown engine it would happen sooner rather than later?

I am glad I traded mine away last fall for a 3.0L diesel. I went almost 40,000 miles on my 2021 6.2L and had no issues. My brother put a little over 60,000 on his 2021 6.2L and also no issues. They probably had a supplier that let bad parts into the supply chain.

 

Lower HTHS is directly related to more engine wear whilst higher HTHS is directly related to less engine wear. This ain’t rocket science.

 

Not sure what you would expect GM to think when they see you actually did part of the recall yourself. The other and initial part of the recall involves inspecting for manufacturing defects in the connecting rods or the crankshaft. If they find the defects after the warranty runs out and you didn't get the initial recall inspection done.... I can envision potential issues. I would just get the initial inspection done at the dealer since it's on their dime.

 

From what I’ve read, all they do is scan for a P0016 code. If not present, they just change the oil. I don’t believe they tear the engine apart to inspect the connecting rods.

 

Yeah, I would check for a code yourself and get it in right away for the oil change. If they find a code they will keep the truck for crank/cam R+R. Who knows how long that will take? Get the recall done so you can still drive it and you are covered if it fails later. I know i am ASSuming, but it looks like they are trying to get a lot of these that show the code off the road and repaired before the engine is toasted.

 

This is where I’m doubtful. If the warranty is out, and it fails, I doubt they would do anything about it if the recall had already been done. It will all be out of my pocket. But if the recall had not yet been done, would it be on their dime? I don’t think recalls have time limits like warranties do.

 

One good thing about this is it puts to bed the whole stupid “the engineers came up with it so it has to be perfect! Follow the manual and the OLM and your truck will be fine!” stupidity that quite a few people like to parrot.

 

Actually, no it doesn’t. If it weren’t for a manufacturing defect, the oil type specified would be perfectly fine.

One thing is for sure, nothing will ever put to bed to the “my great great grandfather used this weight oil and changed it every three months so that’s the only way it should ever be”

 

I'll be switching to 5w30 after my extended warranty expires. 0w is freaking scary as hell.

 

It's not the winter rating that has anything to do with it. A 40 grade could be twice as thick as 20 depending on the oil.

 

New here. I read yesterday that the official letter to owners of the 6.2 will be sent out by GM on June 9. I spoke to service manager at my dealer yesterday and he advised waiting until GM offers the "approved" Delco 0-40 oil and the filter that will apparently be new. I was in for an oil change and wanted the 0-40 but he convinced me to wait due to being in warranty and to follow GMs advice. I have 10,500 trouble free miles so far changing oil by 3500 mi and sticking with 93 octane. I guess I'll wait until the official letter comes out and directions for the dealer inspection. I'm not towing or any road trips till later in summer.

 

GM is saying to use Mobil 1 so that should tell you something about how cheap the AC Delco brand is (low bidder). The filter is new but its not a new part number. Keep going to the dealer for oil changes, your engine will be fine? LOL

BTW, you could put 0W-40 in it and they would never know, unless you tell them.

 

So GM performs the initial remediation by checking a code? How does that determine a rod/crankshaft manufacturing defect?

 

See above where I posted the cam to crank relationship issue that generates the code. By doubling the thickness of the oil it seems they're admitting their design cannot handle heavy workloads on hot used oil.

Not another Chevy LS with an oil pressure issue! /sarc 🙄

 

I have over 16000 trouble free miles on my 6.2 truck. The only issue I have is the upper GFRM dual fan cover keeps coming off and it lays on top of the motor?

 

FYI
GM Explains Why 6.2L L87 Recall Doesn't Apply To 2019, 2020
Here's Why GM 6.2L V8 Recall Doesn’t Apply To 2025 Vehicles

 

I'm playing devil's advocate here. So if you decide not to take it in and change the oil yourself and next year your engine fails GM can then say "well you didn't bring it in for the recall" then wouldn't that be on you and not on them?

If it was me I would take it in and get the inspection, the oil changed, and the new oil cap installed. I would also ask to speak with the service manager or general manger and ask if something happens and your motor fails next year if your motor is still covered under your warranty.

 

I'm playing devil's advocate here. So if you decide not to take it in and change the oil yourself and next year your engine fails GM can then say "well you didn't bring it in for the recall" then wouldn't that be on you and not on them?

If it was me I would take it in and get the inspection, the oil changed, and the new oil cap installed. I would also ask to speak with the service manager or general manger and ask if something happens and your motor fails next year if your motor is still covered under your warranty.

GM is adding a 10 year 150K warranty to the engines that pass inspection for the recall. ....not getting it done is pretty silly.

 

Should You Use 0W-40 Oil In Non-Recalled GM 6.2L L87 Engine?

 

I just took my 2024 in for the recall 05/07/24. They said that they have had 3 different changes in what to do. The end result was they did not change the oil, they did not replace the oil filler cap to show the 0-40 and nothing in the owners book. They updated some software and that was it.

 

I took mine in yesterday for a recall also, it had nothing to do with the engine inspection. They have not received that particular recall as of yesterday!! They received the oil caps and ordered a bunch of 0-W40.

 

Yesterday the dealer changed my oil and used 0-W20. They have not been notified to use the 0-W40.

 

Just one question... what about Mobil 1 is 'unstable' that you have to add Lucas 'oil stabilizer' to it?

 

Lucas oil stabilizer does a different thing than Mobil 1. It helps with dry engine start up and with a 0w rating it keeps all internal engine parts lubed especially with the engine stopping at stop lights. Lucas oil sticks to all the metal parts and doesn't drain away leaving you with metal on metal start after start.

Please feel free to read the Lucas oil stabilizer web site.

Heavy Duty Oil Stabilizer – Lucas Oil Products, Inc. – Keep That Engine Alive!

Heavy Duty Oil Stabilizer – Lucas Oil Products, Inc. – Keep That Engine Alive!

www.lucasoil.com

I've run it in my 65 corvette for over 30 years and I don't drive that car easy.

At the end of the day always change your oil at 3k. It's not the oil holding it's viscosity, it's all the engine gunk that builds up in the oil, that just eats engines from the inside. If you're drive 8- 10k on an oil change you are just rushing to your next vehicle purchase.

100$ worth of oil 3-4 times a year is a lot cheeper insurance than replacing you engine.

 

Advertising jargon. Snake oil.

 

So apparently GM claims to have’ resolved ‘ the assembly defect on May 31st of 2024 . Personally my door tag indicates a manufacture date of 8/24 so I may be out of the woods….still just a big cluster for a lot of folks.

I had not heard anything from GM as of yet so I called the dealer to verify. He stated that GM was gathering affected VINs via OnStar and that mine was not on the list as of yet….not sure if this is another Grimm’s Fairy Tale or not……
https://static.nhtsa.gov/odi/rcl/2025/RCLRPT-25V274-1598.PDF

 

Thanks for this information. I see some claim the warranty has been extended out 10 150 killometers but it didn’t say that in the recall. I guess I’ll hold my breath till I get the letter.

 

I fear that isn't the end of the story. Some 2025s have failed as well. 2025 has production dates from July 17th to June this year. Now they started 2026 models. My guess is that they may expand it to part of the 2025s as well, especially the earlier models. Either way I am not interested at this point.

 

If she goes she goes if she blows she blows I really don't give a shit, gm will fix it!!!!

 

my thoughts exactly

 

If I were to get another gm truck it would be. 6.2 because it runs like a top fuel dragster. Not really but it does remind me of the 70's when horse power was king 😆

 

I love how my 6.2 runs and sounds. It does remind me of my high school years in the 70's.

 

Yes I know it's not a top fuel dragster,but it really does get with it, Compared to today's vehicles. It brings a smile to my face every time I Imash it to the floor, which seems to be often 😆. And when on a road trip it's common to get 26 miles per gallon. Can't beat that!!!

 

And on another note, why not build a truck reliable without all this high tech crap. You know electric windows, AC ,just the basics. I disabled most of the high tech crap anyways. The first time I pulled into the garage and the seat started vibrating I about drive it through the wall 😆

 

It's too bad to the point that even the most reliable engines and brands (V35A problems exist even in 2024s) are having problems.
And I am not even referring to GMC/Chevrolet at this point...

 

Per that article...

"Vehicles impacted by the recall will be inspected by authorized GM technicians.

"If either of the manufacturing defects are detected, the engine will be replaced.

"For vehicles that pass inspection, GM will provide an oil and filter change using 0W-40 Mobil 1 Supercar oil, as well as a new oil fill cap to match the revised spec.
Engines that pass inspection will also receive a new special coverage program that extends warranty protection for 10 years or 150,000 miles from the vehicle’s in-service date, whichever comes first.

"The Special Coverage program number is N252494003."

 

Did you even Google the Special Coverage number you just posted?

Per the NHTSA and GM, "this special coverage covers if an engine failure occurs..."