New bulletin/Campaign 6.2 L87

[ExYukon]

21 minutes ago, Byrds8 said:

I am due for an oil change, I wonder if I should just swap out the 0W20 I recently bought for the 0W40 and go on from there.

What it says to me is that they are giving everyone a free oil change, so sure, exchange the 0W20 for 0W40, but then save it for the future.

[tjonesdfw]

I'm sure GM is covering its tail and wont release concrete evidence regarding whether the 2025 and 2025 L87s are safe from these issues, because as far as I can tell, part numbers are all still the same.  I haven't looked at a '25-'26 to see if the oil recommendation is different, but those years aren't covered by this bulletin or the original NHTSA Action Number PE25001 .  It's also interesting that GM released this today, because 4/25 is the day GM requested an extension through to reply to PE25001, as they've missed several of their prior ODI deadlines.  

[tjonesdfw]

56 minutes ago, Byrds8 said:

I am due for an oil change, I wonder if I should just swap out the 0W20 I recently bought for the 0W40 and go on from there.

I was heading in tomorrow for an oil change for one of our 6.2s as well, but the dealer is also stating they can't do anything different yet.  My concern is changing to the 0W40 on my own before GM fully implements the change, having that on record prior to the recall "having a resolution," then the motor still grenades and GM tells me to shove it.  That would be par for the course on how they've handled this entire deal.   

[Byrds8]

I have thought about that also. However, could they really? I mean they issued the recall for the vehicles on the dealers lots. Can they really tell us they wont cover the engine at that point? 

[tjonesdfw]

3 minutes ago, Byrds8 said:

I have thought about that also. However, could they really? I mean they issued the recall for the vehicles on the dealers lots. Can they really tell us they wont cover the engine at that point? 

I wouldn't want to be the one to find out.  Looks like they'll only change it per the existing specs now, then as soon as this procedure gets firmed up, I'll have to go back to the stealership for whatever procedure they will do at that time.  I would definitely follow everything to a tee, and have learned to use one dealer until major issues are resolved after the experience I had getting major repeat issues repaired on our '21..  

[Snow White]

had a 2009 silverado, left the GM family cause the chevy's were ugly as sin and I despised the AFM, got a 2018 ecodiesel and wouldn't you know, 10% were lost to main bearings.... at 136,000 we're putting my ecodiesel on light duty to drag out replacing DPF and other diesel emissions crap, I do have a GDE tune on it (compliant tune) there is one for the Babymax if you're interested but I digress....we now own a september built 2024 6.2L Yukon Denali and we did not receive the recall notice on our app.......... yet.

 

Stellantis did the same thing with the ecodiesel on the oil to delay bearing failures and get them through the warranty period but a lot of ram owners got the super cheap 100,000 or 120,000mi warranty lol.... anyways, ram also change the TCM shift points to run higher rpms and prevent lugging on the mains.

 

this is a scam to avoid warranty work for the vehicles on the fringe of rod bore tolerances, which are being found in the field several thousands too small.  how it's possible a rod bore gets is out of spec and gets installed is only a testament to lack of GROSS QC.  I believe a robotic hand-assist is used to torque the cap bolts and there is no QC on the actual rod bores of the split caps and powdered metal rods (both cheap solutions to save manufacturing and material costs) forged steel is superior but requires more machining.

 

anyways, they're fixing a part manufacturing mistake with an oil that has less propensity to sheer, and we're being fleeced.  let the lawsuits fly!!

 

edit:  i purchase the truck fully aware it could drop the rod, we have 100,000 mile 8yr warranty on ours and i do analysis at each change.  if it drops the motor, the replacement will not go in without the rod bores verified with a bore gauge.  if they're out of spec, the negotiations begin.

Edited April 25, 2025 by butzers09silverado

[customboss]

1 hour ago, Grumpy Bear said:

Name it...the exact metallurgical ISSUE

Oh Grumpy stop it. No one jumps because you say so. Are you really that naive? 

[Silverado4x4]

32 minutes ago, tjonesdfw said:

I was heading in tomorrow for an oil change for one of our 6.2s as well, but the dealer is also stating they can't do anything different yet.  My concern is changing to the 0W40 on my own before GM fully implements the change, having that on record prior to the recall "having a resolution," then the motor still grenades and GM tells me to shove it.  That would be par for the course on how they've handled this entire deal.   

Let them change the oil with 0W20 then bring it home and change it to 0W40 with the oem filter. Then when you get the notice take it in again.

Edited April 25, 2025 by Silverado4x4

[customboss]

5 hours ago, newdude said:

 

 

Corvette/Camaro/Blackwing 6.2 LT1, LT2, LT4 and LT5 use it currently as of 2019.  Nothing new.  0w20 was/is in the pickups solely for fuel economy reasons.   

And because GM materials engineering knew it was safe and acceptable or they would not have done it. Nobody in the industry designs an engine to destroy the big end of the rod on purpose.  Well then there's Grumpy Bear who in his expert opinion thinks so. 

Edited April 25, 2025 by customboss

[customboss]

1 hour ago, Grumpy Bear said:

 

The defect is the 0W20 oil 

 

 

Name it...the exact metallurgical ISSUE. Can't be done. Again, attempting to 'say a thing true'. . PROOF! and failing motors is proof only that they are failing. REASON...LOGIC....

 

Not the OEM's first rodeo on oil related failures. Anyone remember taking all the Phosphorus/sulphur out of flat tappet cammed motors just before roller cams became standard fair?  And the hideous number of lifter/lobe failures? NOT metallurgical. Motors are not moron proof. 

How many flat tappet mass production engines are there for PCMO world?  Yeah none.  Why are you such a chicken little screamer....LOL  its funny then its not when you attack. 

[customboss]

9 minutes ago, butzers09silverado said:

had a 2009 silverado, left the GM family cause the chevy's were ugly as sin and I despised the AFM, got a 2018 ecodiesel and wouldn't you know, 10% were lost to main bearings.... at 136,000 we're putting my ecodiesel on light duty to drag out replacing DPF and other diesel emissions crap, I do have a GDE tune on it (compliant tune) there is one for the Babymax if you're interested but I digress....we now own a september built 2024 6.2L Yukon Denali and we did not receive the recall notice on our app.......... yet.

 

Stellantis did the same thing with the ecodiesel on the oil to delay bearing failures and get them through the warranty period but a lot of ram owners got the super cheap 100,000 or 120,000mi warranty lol.... anyways, ram also change the TCM shift points to run higher rpms and prevent lugging on the mains.

 

this is a scam to avoid warranty work for the vehicles on the fringe of rod bore tolerances, which are being found in the field several thousands too small.  how it's possible a rod bore gets is out of spec and gets installed is only a testament to lack of GROSS QC.  I believe a robotic hand-assist is used to torque the cap bolts and there is no QC on the actual rod bores of the split caps and powdered metal rods (both cheap solutions to save manufacturing and material costs) forged steel is superior but requires more machining.

 

anyways, they're fixing a part manufacturing mistake with an oil that has less propensity to sheer, and we're being fleeced.  let the lawsuits fly!!

 

edit:  i purchase the truck fully aware it could drop the rod, we have 100,000 mile 8yr warranty on ours and i do analysis at each change.  if it drops the motor, the replacement will not go in without the rod bores verified with a bore gauge.  if they're out of spec, the negotiations begin.

That ^^^^^^^^^^^^^^^^ 

[BlancoSilverado]

So i know that the bulletin is for the 2021-2024 L87 (6.2), since the 5.3 is essentially the same motor with less displacement, would with be beneficial of the 5.3 guys/gals to change to 0W-40? 

 

** isnt the 2019-2020 and 2025 L87 the same motor, was there a bad batch of parts for the 2021-2024 engines?

Edited April 25, 2025 by BlancoSilverado
** additional, need help with spelling

[Black02Silverado]

1 hour ago, BlancoSilverado said:

So i know that the bulletin is for the 2021-2024 L87 (6.2), since the 5.3 is essentially the same motor with less displacement, would with be beneficial of the 5.3 guys/gals to change to 0W-40? 

 

** isnt the 2019-2020 and 2025 L87 the same motor, was there a bad batch of parts for the 2021-2024 engines?

To me, the fact that the years in question are failing early as in with only 1,000 mile from new on some. This would tell me that manufacturing has a flaw, either in assembly or metallurgy. If the assembly isn’t to specification or the quality of the metal is poor, no oil will fix it. Just a matter of time until it lets go. 
 

So other model years should be good. 

[Black02Silverado]

3 hours ago, Grumpy Bear said:

 

The defect is the 0W20 oil 

 

If so then all of their engines would be going bad and GM would be out of business. The fact that it’s happening as early as 1,000 miles or sooner from new states to me an issue with either quality materials or assembly. 
 

 

[Foxglove]

3 hours ago, tjonesdfw said:

I'm sure GM is covering its tail and wont release concrete evidence regarding whether the 2025 and 2025 L87s are safe from these issues, because as far as I can tell, part numbers are all still the same.  I haven't looked at a '25-'26 to see if the oil recommendation is different, but those years aren't covered by this bulletin or the original NHTSA Action Number PE25001 .  It's also interesting that GM released this today, because 4/25 is the day GM requested an extension through to reply to PE25001, as they've missed several of their prior ODI deadlines.  

 

2025 owner's manual hasn't changed: "Viscosity Grade Use SAE 0W-20 viscosity grade engine oil for the 5.3L and 6.2L V8 engines."