GM trucks today.

Fritz Maurer

Well-known Member
I can't tell what's A.I. but seeing all these videos on pickups driving down the road and motors randomly seizing and lawsuits and dealer fixes being change to lighter oil. Is this an overblown incident of a handful of trucks or is this real.

I do have a friend with a 2500 and he had a terrible time getting a transmission for a 2 year old truck.
 
I can't tell what's A.I. but seeing all these videos on pickups driving down the road and motors randomly seizing and lawsuits and dealer fixes being change to lighter oil. Is this an overblown incident of a handful of trucks or is this real.

I do have a friend with a 2500 and he had a terrible time getting a transmission for a 2 year old truck.
My old 2007 GMC uses 5w30 and no issues. I couldn't tell you about newer trucks or AI.
Newer GM vehicles recommend 5w30 Full synthetic and change oil every 6000 miles.
 
Are you a Chevy pickup owner and watch a lot of YouTube about the latest “viral” thing about them? I watch a fair bit of content from Dave’s Auto Center. One of their specialties is late model diesel pickup repair of all brands. My YouTube gets loaded with all kinds of videos of pickup engine failures. It hasn’t shown me a lot of Chevy failures like you are talking about. All I am saying is the logarithms or what ever you want to call seriously slant what you are shown. I’m not saying it’s not happening, I just saying what you’re being shown is tipping your scale.
 
Are you a Chevy pickup owner and watch a lot of YouTube about the latest “viral” thing about them? I watch a fair bit of content from Dave’s Auto Center. One of their specialties is late model diesel pickup repair of all brands. My YouTube gets loaded with all kinds of videos of pickup engine failures. It hasn’t shown me a lot of Chevy failures like you are talking about. All I am saying is the logarithms or what ever you want to call seriously slant what you are shown. I’m not saying it’s not happening, I just saying what you’re being shown is tipping your scale.
Im pretty sure that they are discussing gasoline engines. They mentioned 0-W30 oil which i have never heard of. Someone on this forum mentioned a couple months ago that they require 94 octane or else it would trash the engine. Whether this is conducive to the failures I don't know. The trucks in the videos are the same '21- ish trucks that my friend had so much trouble finding a transmission for.
 
I think the only recall I've heard about is the 2021-2024 GM L87 6.2L engine failures. I don't have any experience with this failure but makes me think about what my next truck replacement will be for my 2007 Sierra 1500HD with 240K miles. I'm going to have to pay attention when that time comes.
 
I will just add a point of clarification: 0W-30 synthetic oil is not a lighter grade of oil, its multi-viscosity so at lower temperatures it flows more easily hence the 'zero' as opposed to '5'. The 30 remains the same for higher temperatures. And, it is a very common oil grade in more northern climates for both gas and diesel engines. No problem running it year round, assuming good quality oil and reasonable oil/filter change intervals.
 
The GM 6.2L recall is for real. Engines produced from 2021 to sometime in 2024 or around 800,000. This is not a voluntary recall but forced by NHTSA. The engine may or may not be replaced. If not replaced the engine oil (0-W20) will be replaced with 0-W40. If a new engine is installed it will be filled with 0-W20 oil. The failures are blamed on debris not being properly cleaned before assembly.
There is plenty of information available on this recall. A quick search should get more than you care to read.
 
I think the only recall I've heard about is the 2021-2024 GM L87 6.2L engine failures. I don't have any experience with this failure but makes me think about what my next truck replacement will be for my 2007 Sierra 1500HD with 240K miles. I'm going to have to pay attention when that time comes.
My 2007 GMC 1500 has half your miles on it.
I had my truck undercoated so it is not a rust bucket.
I think I would have my engine and tranny rebuilt before I pay big bucks for another truck.
Remember 2007 was the last year for the classic style, You don't need a step ladder to get in the truck or in the bed.
Some new loaded trucks cost more than a Caddy.
 
I will just add a point of clarification: 0W-30 synthetic oil is not a lighter grade of oil, its multi-viscosity so at lower temperatures it flows more easily hence the 'zero' as opposed to '5'. The 30 remains the same for higher temperatures. And, it is a very common oil grade in more northern climates for both gas and diesel engines. No problem running it year round, assuming good quality oil and reasonable oil/filter change intervals.
It has to be a lighter grade than 10W30, the first number is the viscosity at 0°F, the second number the viscosity at normal engine operating temperature. This 0W30 is so the mfgrs. engines can meet or exceed EPA fuel mileage requirements.
 
If you have a GM Duramax diesel built between about 2006 and 2022. You have an Isuzu engine.

GM gas engines
2021–2024 - 600,000 to 800,000 truck engines were produced with bad Crankshafts and/or connecting rods.

Two days ago GM issued another recall due to the airbags. Cadillac is included in the recall.

Some new Ford F250 and F350 Diesels were sent out with a bad Mexican made fuel return line connectors that is causing fires. The connector doesn't fit like it should and allows fuel to leak.
 
It has to be a lighter grade than 10W30, the first number is the viscosity at 0°F, the second number the viscosity at normal engine operating temperature. This 0W30 is so the mfgrs. engines can meet or exceed EPA fuel mileage requirements.
Confusion regarding the term 'lighter grade' of oil, there is no definition for lighter, we are talking dynamic viscosity a measurable quantity. The confusion is regarding...

High Viscosity vs. Low Viscosity.

and then temperature plays its role in the viscosity too.
No 1 0W-40 motor oil.jpg
 
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Have a guy right here in the town im from take his newish GM gas truck out west and the engine developed problems or next to blowing up. Had to buy a new truck to keep going west. And had to buy a diesel at that. So the storys are real.
 
If you have a GM Duramax diesel built between about 2006 and 2022. You have an Isuzu engine.

GM gas engines
2021–2024 - 600,000 to 800,000 truck engines were produced with bad Crankshafts and/or connecting rods.

Two days ago GM issued another recall due to the airbags. Cadillac is included in the recall.

Some new Ford F250 and F350 Diesels were sent out with a bad Mexican made fuel return line connectors that is causing fires. The connector doesn't fit like it should and allows fuel to leak.
Cadillac is included in the recall.

That explains why my car came with a Do-it-yourself airbag in the glove box.
You have to blow air in the airbag and put the dash and yourself. :D
On-star reported my airbag is fine
 
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My old 2007 GMC uses 5w30 and no issues. I couldn't tell you about newer trucks or AI.
Newer GM vehicles recommend 5w30 Full synthetic and change oil every 6000 miles.
And has the Dexos (I think I remember the spelling correctly) seal on the container. What you may not expect to see is that WM full syn. now carries that rating....just noticed it in the last year or so.
 
Im pretty sure that they are discussing gasoline engines. They mentioned 0-W30 oil which i have never heard of. Someone on this forum mentioned a couple months ago that they require 94 octane or else it would trash the engine. Whether this is conducive to the failures I don't know. The trucks in the videos are the same '21- ish trucks that my friend had so much trouble finding a transmission for.
I have had more than one vehicle that uses 0-w? oil. I’d never seen the 0 until I got them.
 
And has the Dexos (I think I remember the spelling correctly) seal on the container. What you may not expect to see is that WM full syn. now carries that rating....just noticed it in the last year or so.
I really don't know what kind of oil my dealer uses. I can't see changing my oil when the dealer will do it for $39.99 and use up to 6 quarts of full synthetic. As long as the car is under factory warranty the dealer will change my oil.
I have an appointment this Monday at 11 am. My boss will pick me up and a short drive away we will have lunch at Cheaters while the oil is being changed. Eating out is more fun than crawling under my car to change the oil. And I don't get dirty.
 
My 2007 GMC 1500 has half your miles on it.
I had my truck undercoated so it is not a rust bucket.
I think I would have my engine and tranny rebuilt before I pay big bucks for another truck.
Remember 2007 was the last year for the classic style, You don't need a step ladder to get in the truck or in the bed.
Some new loaded trucks cost more than a Caddy.
Good price. Last one on my AMG cost $200 at an independent shop. Labor is $90 of it.

Vito
 
And has the Dexos (I think I remember the spelling correctly) seal on the container. What you may not expect to see is that WM full syn. now carries that rating....just noticed it in the last year or so.
The oil in the bottle is more than likely the same oil they used before they paid GM the ransom fee to put a Dextos stamp on the jug.
 
I think it's sad what has become of things.... we have these super space-age power plants that a single milliliter, or however one measures viscosity, can mean the difference between success and failure..... and my 94 S10 has gotten a couple quarts of universal tractor fluid a few times to get the oil level back to the end of the stick.
 
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