Thinking of selling my new 6.2L Denali...

[91RS]

No one is really worried about the electronics, it’s the 6.2 bearing failure. Even if it truly is a small percentage, the failure rate of these engines is the highest it’s been in over 30 years.

 

[aboss3]

You see these trucks lose 30% of their initial value the first year. We probably have cars that depreciate the most early on. So selling is not always a good thing. Also, you find all enthusiasts on these forums. Just drive it and enjoy. I put 52k miles on my ‘22 denali xl 6.2 and got extended warranty so I can drive it till 120k miles.

 

[Blueinterceptor]

changing the oil more often certainly won’t hurt anything. I change mine at 5000 mile intervals and use Mobil one. I had it changed at the dealership before I left with it, at 10 miles

 

[KMeloney]

changing the oil more often certainly won’t hurt anything. I change mine at 5000 mile intervals and use Mobil one. I had it changed at the dealership before I left with it, at 10 miles

Which number Mobil 1? Mobil 1 5w30 is all my Z06 has ever gotten -- but then again it's recommended right there on the filler tube cap.

 

[Blueinterceptor]

I use the recommended weight. For the 23/24 Tahoe 6.2. I think it’s 0w20

 

[Antonm]

Which number Mobil 1? Mobil 1 5w30 is all my Z06 has ever gotten -- but then again it's recommended right there on the filler tube cap.

Just for giggles I put an oil fill cap meant for a Corvette that says 0W-40 on my Tahoe, not that any service/ lube tech would ever bother to read it.

I just think its funny how people are all worried about using the "wrong" oil when GM specs 0W-40 oil for literally the same short block (aside from a different camshaft profile, the Corvette short block is identical, part number for part number, to the Tahoe 6.2 short block,,, and the oil fill caps interchange too).


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[Blueinterceptor]

I use what the manufacturer recommends simply because the vehicle is under warranty and I would not want to give gm any excuse not to cover repairs.

 

[Antonm]

They would have to prove that the oil caused the issue (links to the federal trade commission's and USCode government websites regarding the Magnuson-Moss warranty act are below,,, or you can google the Cliff notes version of the Magnuson-Moss act that says in a nut shell that to deny a warranty , they have to prove the fault).

And if the engine fails (which is kind of a thing with the 6.2 right now) , nowhere does it tell the mouth breathing computer screen reader dealership tech that's diagnosing the issue to check the oil weight. They do ONLY what the screen tells them to,,, and the screen tells them to visually look for metal in the oil, not send the oil out for analysis.

The recommendation of 0W-20 oil is purely for CAFE reasons. I'd rather have my engine live a healthy life, and still be around past the warranty period, rather than just barley get out of the warranty period with a clapped out engine because of some irrational fear of warranty denial.

Magnuson Moss Warranty-Federal Trade Commission Improvements Act

Title I of this Act authorizes the Federal Trade Commission to develop regulations for written warranties.

www.ftc.gov

https://uscode.house.gov/view.xhtml?req=granuleid%3AUSC-prelim-title15-chapter50&edition=prelim

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[91RS]

And if the engine fails (which is kind of a thing with the 6.2 right now) , nowhere does it tell the mouth breathing computer screen reader dealership tech that's diagnosing the issue to check the oil weight. They do ONLY what the screen tells them to,,, and the screen tells them to visually look for metal in the oil, not send the oil out for analysis.

Tell me you don’t have a clue without telling me you don’t have a clue.

 

[Antonm]

Tell me you don’t have a clue without telling me you don’t have a clue.

Truth hurts sometimes, dealership techs are nothing more than parts changers anymore.

They plug in the computer, and replace whatever part the screen says to replace, hence why so many people are having to take their vehicles in four and five times for the same issue.

There is no troubleshooting, no understanding of what's going on, and virtually no thoughts in their head other than " rush through this task and beat book time so I can get paid more".

I've met/ hung out with a lot of dealership techs over the years as my sister was the service department manager of a Ford dealer for a little over decade. Good guys to drink with at the party for sure, but pretty much any enthusiast knows more about their cars than the dealership techs do.

Those guy are there to get paid, and its easy to justify billable hours by reading the screen and only doing exactly what it says. Even in those off-chance circumstances where they know its wrong and won't fix the problem, they'll do it anyway if that's what the screen says just to get the billable hours. In the words of the classic Metallica song it's "Sad but true".
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