BREAKING: GM is officially recalling the L87

[GMCChevy]

I don't have a dog in this fight but I do have a question for the guys who do. Are you feeling lucky?

A thicker oil although it should protect better will NOT fix a manufacturing (part) defect. So my opinion is switching to 0w40 just prolongs it until the catastrophe happens. Whether that's an extra 5 miles or 50k.

I wish you all with 6.2s the best of luck! I know I'd be pissed with an expensive paperweight with low miles on it.

Like I said in an earlier post it seems like the different oil is a band aid solution to get them past warranty. It's the same trick that's been used forever running thicker oil in older worn out engines to try to keep them going longer only in this case they aren't old.

 

[Stbentoak]

Like I said in an earlier post it seems like the different oil is a band aid solution to get them past warranty. It's the same trick that's been used forever running thicker oil in older worn out engines to try to keep them going longer only in this case they aren't old.

Yep, In the beginning of this thread consensus (not Mine) was SURE 0W-20 was doing them in which, just like the lifter debacle, is quickly boiling down to substandard parts and potential contamination. No oil can battle out of tolerate mating parts or weak metal. What's crazy is the scale of this thing and how long it was allowed to continue....

 

[BacDoc]

The CEO, Mary Barra was on the financial channel this morning. The talk was about guidance and the tariffs. She was typical CEO double speak and really never answered the questions about building new plants in the US and said MSRP is not going to go up due to the tariffs.

She was never asked about the recall debacle which I thought was interesting. Last year they grilled the Ford CEO about how warranty and recall issues were killing Ford’s bottom line and sucking revenue from the guidance. Besides going way too fast into the EV market the warranty expense tore into the profits of some great sales and that stock suffered.

It’s amazing how skilled the CEO’s and politicians are at speaking many words without actually saying anything.

 

[Silverado4x4]

The CEO, Mary Barra was on the financial channel this morning. The talk was about guidance and the tariffs. She was typical CEO double speak and really never answered the questions about building new plants in the US and said MSRP is not going to go up due to the tariffs.

She was never asked about the recall debacle which I thought was interesting. Last year they grilled the Ford CEO about how warranty and recall issues were killing Ford’s bottom line and sucking revenue from the guidance. Besides going way too fast into the EV market the warranty expense tore into the profits of some great sales and that stock suffered.

It’s amazing how skilled the CEO’s and politicians are at speaking many words without actually saying anything.

I was watching the same thing this morning your right she didn't answer any of Maria's questions directly she side stepped every question. She needs to go. She has never been a good CEO for GM.

 

[Aggie76]

I was watching the same thing this morning your right she didn't answer any of Maria's questions directly she side stepped every question. She needs to go. She has never been a good CEO for GM.

Well, she did begin her career in the HR field so that explains her ability to tap dance and say nothing. Not all HR executives are like that but she seems to have developed that ability.

 

[viven44]

After I saw that the 6.6L is far better cost metrics for the consumer (in fuel, maintenance) for the consumer than the 6.2L, I can't imagine the amount of brain cells spent on designing the 6.2L w/DFM.

And I'm not going to leave out the 5.3L out of this, (yes we have it) it doesn't have the low-end torque I'm used to my old trucks, it is not fuel efficient (Our 02 Yukon's 5.3L has about the same fuel efficiency and tow rating as our 2024).

Everybody wants the CEO gone, but I'd like to know who the heck the SVP was that approved release of DFM was, when it really doesn't even help much except add complexity.

"Add complexity, remove reliability....."

 

[ENTX]

Has anyone gone to the dealer to get the recall checked yet? I called mine, and they sounded kind of clueless. At first, they said there was no recall, then changed their mind and said there is one. I was asked if I wanted an oil change, and I replied, 'Well, it's part of the recall, isn't it?'—to which they agreed, but didn't sound very confident.

My initial thought was to schedule this early, before everyone else gets a recall notice, but now I'm questioning whether that's a good idea since the dealer seems unsure about what to do.

Also, the NHTSA site says: 'Recall Incomplete, remedy not yet available'... hmm. What are y’all’s thoughts on how prepared the dealers are to handle this recall right now?

 

[KMeloney]

Has anyone gone to the dealer to get the recall checked yet? I called mine, and they sounded kind of clueless. At first, they said there was no recall, then changed their mind and said there is one. I was asked if I wanted an oil change, and I replied, 'Well, it's part of the recall, isn't it?'—to which they agreed, but didn't sound very confident.

My initial thought was to schedule this early, before everyone else gets a recall notice, but now I'm questioning whether that's a good idea since the dealer seems unsure about what to do.

Also, the NHTSA site says: 'Recall Incomplete, remedy not yet available'... hmm. What are y’all’s thoughts on how prepared the dealers are to handle this recall right now?

I know it's a lot, but you should read through this thread. All asked and answered. Dealerships aren't prepared to act on the recall yet. We [on the list] are all in the same boat -- waiting to see what happens next.

 

[Marky Dissod]

Y'all better take some initiative and suss out how to intentionally break your L87s without getting caught.
Otherwise GM will leave thousands of you with L87s that won't make it to 150,000 miles,
which is what GM (may not even consciously realize that they) intended.

Used prices for GMT800s & GMT900s are about to go up ...

 

[ENTX]

I know it's a lot, but you should read through this thread. All asked and answered. Dealerships aren't prepared to act on the recall yet. We [on the list] are all in the same boat -- waiting to see what happens neTh

Thank you! In this case I'll cancel the appointment and go through the thread.

 

[rmsnickers]

Hot take: don't protect/extend your engine with the 0w-40 and keep running the original for as long as possible. If you have an affected unit, wouldn't you want to get it to failure as fast as possible within the recall period and/or warranty instead of band-aid it with the 0w-40 and miss your chance to have GM on the hook for a replacement?

Edit: lol, @Marky Dissod literally just had the same thought at the same time.

 

[Blueinterceptor]

Has anyone gone to the dealer to get the recall checked yet? I called mine, and they sounded kind of clueless. At first, they said there was no recall, then changed their mind and said there is one. I was asked if I wanted an oil change, and I replied, 'Well, it's part of the recall, isn't it?'—to which they agreed, but didn't sound very confident.

My initial thought was to schedule this early, before everyone else gets a recall notice, but now I'm questioning whether that's a good idea since the dealer seems unsure about what to do.

Also, the NHTSA site says: 'Recall Incomplete, remedy not yet available'... hmm. What are y’all’s thoughts on how prepared the dealers are to handle this recall right now?

I was at my servicing dealer within an hour of this recall being announced. I did follow up call 3 days later. They had no recall service authorization numbers yet. So they can’t charge gm for the work. I knew full well that they wouldn’t have the fill cap or owners manual page available yet. But they will not do the work until they have the proper number to charge out the work.

 

[Mma-007]

I don't have a dog in this fight but I do have a question for the guys who do. Are you feeling lucky?

A thicker oil although it should protect better will NOT fix a manufacturing (part) defect. So my opinion is switching to 0w40 just prolongs it until the catastrophe happens. Whether that's an extra 5 miles or 50k.

I wish you all with 6.2s the best of luck! I know I'd be pissed with an expensive paperweight with low miles on it.

I have a 23 xl Denali 6.2 with 11k miles. I’ve been running 5w30 since I purchased it. I said this before on this thread. Treat your car well. It’s not a race car. I change my oil every 2500 miles (personal preference). Add an oil catch can. Do maintenances on the car. Definitely change your gear oil. There will be some users who will encounter this issue no doubt and that’s unavoidable. But, for the most part people will be fine.

 

[viven44]

If you have an affected unit, wouldn't you want to get it to failure as fast as possible within the recall period and/or warranty instead of band-aid it with the 0w-40 and miss your chance to have GM on the hook for a replacement?

If it was me, I would want nothing to do with an engine manufactured in the defective window especially with all the damage the 0W-20 has done already..… since GM is playing unfair but convenient-to-them games here, I’d try to end that engine asap and try to set that P0016 code

@jfoj have you received the recall notice yet ?

 

[vcode]

So I have to ask..... How bad is the 0W20 oil? I mean there has to be millions of engines out there (since 2014 on the 5.3L?) running that oil that don't have any problems, at least with bearing issues. Sounds to me like 0W40 is a hail Mary fix for what is obviously a manufacturing defect.

 

[jfoj]

If it was me, I would want nothing to do with an engine manufactured in the defective window especially with all the damage the 0W-20 has done already..… since GM is playing unfair but convenient-to-them games here, I’d try to end that engine asap and try to set that P0016 code

@jfoj have you received the recall notice yet ?

Many parts here.

#1. Unclear if the majority of the replacement 6.2l are pulled as new engines from the production line or how may are remanufactured by a 3rd party for GM. Both can and have been problematic. We have seen a number of reports of failed replacement 6.2l in as short of a time where the vehicle never left the dealer, hundreds of miles or between 3-15k miles as I recall. Of these failed engines I have no idea if they were all remanufactured or if there was a mix with new builds pulled form the engine assembly plant and remanufactured engines.

#2. If a new engine was pulled from the production line and sent to a dealer for replacement and it has a build date before the magical June 1, 2024, then these engines may have the same problem as the engines within the Recall window that have been failing. This may be why we have seen a number of failed replacement engines.

#3. As for remanufactured engines, the majority of these engines would likely need a new crankshaft due to spun bearing heat and wear damage. Maybe there were other failures where the crankshaft was not damaged. But assuming the remanufacturer needs a replacement crankshaft they would likely be coming from the same foundry that is making the crankshafts for new engines builds. If these cranks were obtained before the magical June 1, 2024 date, the remanufactured engine may have the same problem the original engines had or at least something close.

As for my 2024 Yukon Denali XL, I have not received a Recall notice. This is because my 2024 Yukon has a build month of 8/2024 and the engine production date was July 15, 2024. So I am 6-8 week beyond the magic correction date of June 1, 2024.

What bothers me about all of these is GM had a number of 6.2l manufacturing problems during the 2022-2024 production window. I have found bulletins/Recalls for the 3 following problems: Main Bearing Cap Bolt Torque being too low, Oversize lifter bores, then what we are all monitoring at the moment is the Crankshaft tolerance and debris issue and connecting rod debris/contamination problem. While I think GM may have found the Main Bearing Cap Bolt Torque and the Oversize Lifter Bore problems on their own, it is somewhat coincidental that GM found the Crank and Rod problem 6 months BEFORE the NHTSA investigation was opened and then it took another 4 months before the Recall was issued.

Part of my things GM was trying to bury the cat turd in the catbox on this latest issue. They knew 6 months BEFORE the NHTSA investigation and corporately decided to do nothing, not even come out with a Customer Satisfaction Program to do at least what they are doing now for the Recall. And they choose not to extend the engine Warranty on any of the vehicles with the 2 year build year.

Hey GM Executives, are you listening???? Since your Engineers are so confident that changing to 0W40 engine oil in the compromised 6.2l engines you built for 2 years, where is the 15 year/150,000 mile 6.2l engine Warranty for all of those impacted? If your Engineering group is so confident that the oil spec change will save all these engines, then GM, you will spend $0.00 on extending the Warranty coverage for these compromised engines. Understand that all those impacted now are the girl nobody will ask to the Prom!!! Who will buy these off the dealers lots? Who will loose money on trade in? Who will be inconvenienced if the recalled engines fail outside of the powertrain Warranty? Who is going to step on when the dealer sold the customer an Extended Warranty or the owner buys an extended Warranty and the Extended Warranty company denies the claim because GM 6.2l engines in a 2 year period had a KNOWN defect/problem?? How does this work? #GM, #GM Investor Relations, #Mary Barra

This is why I started out overly cautious with oil changes, oil analysis, ditching the 0W20 engine oil and so forth. I think GM needs to earn the trust back from the customer base that shelled out stupid money for these light duty trucks and SUV's.

Do I think I am 100% in the clear, Not sure????
Do I think maybe I dodged a bullet, MAYBE???
Will I continue with shorter OCI, Yes.
Will I continue with oil analysis, Yes. Adds at least $40 to each oil change!!
Will I rely on 0W20 in any of my vehicles, No.
Will I be nervous driving my 2024 Yukon, Yes.

But I have been doing everything in my power to take care of the 6.2l to eliminate anything that may tip the scales in the wrong direction. I hope and pray that GM did clearly and fully identify a set of problems and get them resolved. But like any great corrective measure if they are not pulling like every 50th or 100th engines from the assembly line and tearing it down for inspection, they are really doing nobody any favors, especially themselves.

We shall see if this is the only version of 6.2l Hell that is released of if there is a sequel in the future.

 

[jfoj]

So I have to ask..... How bad is the 0W20 oil? I mean there has to be millions of engines out there (since 2014 on the 5.3L?) running that oil that don't have any problems, at least with bearing issues. Sounds to me like 0W40 is a hail Mary fix for what is obviously a manufacturing defect.

In general the 0W20 engine is not bad. If becomes an issue under a few situations.

Once 0W20 starts to become fuel contaminated, it looses viscosity. For the average people hauler this is probably somewhat tolerable. But in the case of these light trucks/SUV with the 6.2l being used to propel a 5000-6000 vehicle, loaded with people and cargo and possibly towing something that could weigh more than the vehicle and with how much Low RPM/High Torque operation these engines are under, along with an advice DFM system, I would not and will not run 0W20.

Would you consider running 0W20 in a school bus? Did you buy the school bus for good MPG and would you expect the school bus to get good MPG? OW20 was developed to improve fuel economy with no reduction in engine protection, but at he same time technology has changed, we now have Direct Fuel Injection, far more LSPI, Soot contribution from Direct Injection and the power density has typically doubled in engines over the past 15 years or so between higher compression ratios and turbo charging. Internal engine loading is higher than before, more heat is generated when you get more power in the same package and the environment that the engine oil is operating under is far more challenging.

Hell now GM even agrees with me, stupid old me that knows nothing based on some of the roasting I have received here, GM has now changed the oil spec for a subset of the 6.2l engines over a 2 year window to operate with 0W40 engine oil!!! Go figure, I wonder why??

 

[Stbentoak]

I have a 23 xl Denali 6.2 with 11k miles. I’ve been running 5w30 since I purchased it. I said this before on this thread. Treat your car well. It’s not a race car. I change my oil every 2500 miles (personal preference). Add an oil catch can. Do maintenances on the car. Definitely change your gear oil. There will be some users who will encounter this issue no doubt and that’s unavoidable. But, for the most part people will be fine.

I doubt if anyone who's engine failed in the less than 20K miles zone had really "abused" their vehicles... Prob had 3 or more oil changes of which one was free...

Who the hell wants to "baby" their vehicle just for the fear of it dying prematurely? If you can't drive it normally, (Kids, Dogs, Camping, Towing, Daily school trips,1500-mile vacations, short trip, long trip. etc) maintain it per the mfg. service manual standards and not expect to receive 100+k miles out of it, you flat out bought the wrong brand.

If you own this recalled vehicle, would you load it up tomorrow and take your family on a 3000-mile vacation? (I would have zero hesitation on mine...) If the answer is no, then you deserve more than a 0W-40 oil change.....

 

[jfoj]

Its not IF something in these GM V8 engines will fail, it is WHEN. I am talking about all the GM V8's for the past 15+ years. Before the bearing failure, improperly torqued main bearing bolts and oversize lifter bores, we have ALL been waiting on our AFM/DFM, valve lifter, camshaft problems. Will this happen around 50k miles or 150k miles? Who knows, but the better you care for your engine, the more likely you can hold off these problems.

We have just been doubled down on with far more potential failures that we need to be concerned about.

I recommend to people to not run their OCI to 100% on the OLM, change the oil at 50% OLM. If they choose to do this, great, if they choose 10,000 mile OCI, great, owners choice.

My contention is I probably would spend no more that about $1,200 over 100,000 miles if additional oil changes as I DIY and there is not a single internal engines repair I could have performed for $1,200. You cannot undo damage due to extended maintenace without taking things apart and spending money, I would rather spend the money, hopefully less, and not take things apart. I might be able to do a repair for under $1,200 in parts if I did the repair myself, but I really have no interest in spending 15-20 hours tearing into my engine.

The only engines I have done this to are not failed engines, but engines I choose to rebuild/modify and they were typically not my daily driver and they were already 10+ years old when I chose to do this type of work.

 

[blanchard7684]

I have yet to see an instance of a failure in this pseudo venn diagram:

greater than 5,000 miles, less than 90,000
2021-2024 range
Oil changed before 5000 miles, even with 0w20
Higher viscosity oil used, with any oil change interval, since first oil change
DFM disabled all or most of the time
Auto start stop disabled all or most of the time
Frequently driven more than 30 minutes in single instance

The closest (and it is very close) is Firetrout's 6.2 failure at 27,000 miles:

Yukon Engine Failure - Buyback?

@jfoj here's the legal blurb, it's a settlement, they refused buyback. I paid $100K for it.... now probably is worth 70s? I (“Releasor(s)”), on behalf of myself and my assigns, heirs, and executors, in consideration of $6,500.00 to be paid by General Motors LLC (“GM”), hereby fully release(s)...

www.tahoeyukonforum.com

(I'm leaving out the engines that failed before first oil change. Those are something else entirely. Likely both debris and out of spec crankshaft or another failure mode (wrist pin?) that is statistically guaranteed to show up due to the volume of engines GM puts out.)