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  1. Antonm

    Lost the 6.2 (was: May have Lost the 6.2)

    Perhaps he was trying to "prove" that the 0W20 oil he loves so much can handle the abuse of such a situation (because you know GM had that use case in mind when they spec'd 0W20). Of course no oil can magically fix manufacturing defects or remove machining swarf left in the engine, but there is...
  2. Antonm

    Lost the 6.2 (was: May have Lost the 6.2)

    This has already been answered (a few times actually) and the answer is no. There is no proof because its just not true. Plenty of people have been using 0W20 with no issues for years, it is adequate in many (probably most) cases if no factory defects or abnormal use/abuse exists. 0W40 is...
  3. Antonm

    Lost the 6.2 (was: May have Lost the 6.2)

    Testing requires money, and the results of that testing would need to be financially beneficial to someone before they'd flip that bill. But there is, IMHO, enough field data to say pretty certainly that under ideal conditions (no manufacturing defects present or abnormal use) that an 0W20 is...
  4. Antonm

    Lost the 6.2 (was: May have Lost the 6.2)

    Wouldn't be the first time a vehicle manufacturer knew an life threating fault was present and chose not to do anything about because the cost of fixing the issue was more expensive than the lawsuits. Ford did exactly that with the Pinto back in the 70's, see link below to an article talking...
  5. Antonm

    Help, Need Guidance. 5.3L engine failure with no brakes

    You are "on here seeking guidance" well,,,,The issue is you don't understand how your vehicle works and as a result don't know how to drive it when all its systems aren't working perfectly. In plain English, the reason the vehicle didn't stop was you. Your "fear" and "lack of trust driving this...
  6. Antonm

    Help, Need Guidance. 5.3L engine failure with no brakes

    I get what you're saying, and that may very well be the way you remember it (panic and stress can cause some weird things to happen and result in your mind playing tricks on you). Unless the brake system was physically compromised in some way such that the fluid was gone, what you're saying is...
  7. Antonm

    Lost the 6.2 (was: May have Lost the 6.2)

    And you keep repeating what are blatant misinformed lies. Take the time to actually read what I wrote (assuming you understand the language). Physics does not change when boarders are crossed, 0W20 still NEVER outperforms or protects better than 0W40 oil in any situation, regardless of how the...
  8. Antonm

    Help, Need Guidance. 5.3L engine failure with no brakes

    With the power assist being gone, you just hit the hydraulic resistance of the master cylinder piston. Assuming the brake lines hadn't broken and all the fluid hadn't leaked out, the brakes would've worked if you'd have pressed them hard enough. The brakes requires a lot more pressure with the...
  9. Antonm

    Lost the 6.2 (was: May have Lost the 6.2)

    If the main bearing shells spun (which is typical) then the block is trashed too. Dealers here charge such a high labor rate, that its cheaper to replace an entire engine, than it is pay the labor needed to repair it. As for the 0W40 oil, no it will not fix bad machining or remove debris that...
  10. Antonm

    Lost the 6.2 (was: May have Lost the 6.2)

    Is it safe to assume that it was running 0W20 up until the test 38K miles? If so the bearings might have already been damaged during those initial 38K miles, but the PICO test should have detected that. Please keep us updated with what's going on as the saga unfolds. ...
  11. Antonm

    Help, Need Guidance. 5.3L engine failure with no brakes

    If the engine shuts off the power assist of the brakes and steering stop working, but both systems will still function,,, you've just gotta put A LOT more effort turning the steering wheel and pressing the brake pedal. Many people alive today (even some old people) have never driven a vehicle...
  12. Antonm

    Looking at buying a '22 - '24 Yukon Denali or Escalade L87 6.2

    The 6.2 recall issue is a problem for sure. But just playing the odds, its not a deal breaker yet IMHO. GM says the failure rate is 3%, but,,,they're probably low-balling the number some. Some of the pearl clutching click-baiters out there are saying the real number is closer to 6% (which is...
  13. Antonm

    Steering Wheel Volume control 2025 Suburban

    I don't believe so, at least without lifting wires. I'm sure its technically possible to change the buttons operations via CAN programming, but its not a user option. ...
  14. Antonm

    What Oil for a 6.2 that passes the PICO test?

    Aren't those are just the different part numbers for various size containers the oil can be ordered in (i.e box of six quarts, 55 gallon drum, etc.)? Here are four of the part numbers (same two oils, just different quantity), there is a a fifth part in your pic, but its for a 5w50 variant of...
  15. Antonm

    What Oil for a 6.2 that passes the PICO test?

    There are actually two Mobil 1 oils , in 0W40, that are Dexos approved. The green labeled one on the right below is Dexos-2 approved and of course the Mobil 1 Supercar which is Dexos-R approved Screenshot below is from the Mobil 1 website, they even state that the supercar oil was...
  16. Antonm

    What Oil for a 6.2 that passes the PICO test?

    The last I knew Mobil 1 was the only Dexos (the GM spec) approved 0W40 oil maker out there. Not that non-Dexos oils are bad or anything, Dexos is just GM's proprietary oil specification. To get the Dexos certification, oil manufacturers must jump through a lot of hoops with GM and disclose to...
  17. Antonm

    6.2 engine replacement Yukon Denali please share your experience

    The automotive tech industry is hurting for people, so dealerships will hire anyone that shows up with the correct credentials, and they don't drug test. Firing people isn't an option when you're already operating at half recommended staffing. If you want some interesting reading , and the...
  18. Antonm

    6.2 engine replacement Yukon Denali please share your experience

    Don't know where this dude is getting his information about dealerships not being able to sell used / traded in cars with an open recall, but its not true. We recently purchased a used 2021 Toyota tundra (from a toyota dealership) for our oldest son, looking through the paperwork, it has an...
  19. Antonm

    6.2 engine replacement Yukon Denali please share your experience

    And look at the people that are saying it wont affect resale or may actually increase resale,,, its not the people that actually know or write those trade-in checks. Its like the solar panel salesman saying that adding roof solar panels will increase the value of your home, run that same...
  20. Antonm

    6.2 engine replacement Yukon Denali please share your experience

    Personally I wouldn't touch a car with a dealership replaced engine with a 10 foot pole. Dealership techs are paid based off book time (otherwise known as flat rate). Meaning if the book says this job takes 8 hours, then they get paid 8 hours of pay to do it, doesn't matter if they get it done...
  21. Antonm

    2023 Denali - looking to buy - what should I watch for at 42k miles?

    Probably the wiser decision to got with the 5.3 at this point in time. On the flip side, wise decision's rarely result in much fun being had (at least when it come to cars anyway). ...
  22. Antonm

    2023 Denali - looking to buy - what should I watch for at 42k miles?

    No you are correct, I made a typo (I'll edit the original post for clarity). PICO failures get a new engine, PICO pass get 0W40. Outside recall window 6.2's still get 0W20 (or at least GM is still recommending 0W20 in those anyway). ...
  23. Antonm

    2023 Denali - looking to buy - what should I watch for at 42k miles?

    GM is only recommending the heavier oil in the affected ones after a PICO test. All 6.2's outside the window are still being recommend to run the thin 0W20 oil. There is debate on why that is and what is best for engine longevity. I suggest you do a little reading around the internet as there...
  24. Antonm

    2025 Tahoe 6.2-liter Z71 engine light flashing, stuttering engine

    Sorry I can't provide any insight on your issue other than to keep taking it to the dealership for repair. But side note,,, did you special order your Tahoe or something? Before I bought the High Country I was specifically looking for a Z71 (or GMC AT4) with the optional 6.2 engine. The GM...
  25. Antonm

    Saw this from a distance, and then I pulled up on it…. The V means Bad Ass Ride look at the both right corner

    I live a very happy, very blessed life actually, way better than I deserve. Must be hard for you, always feeling the need to virtue signal I suppose. There is evil in the world (lots of of it) and we are imperfect beings. If you don't believe that, good on you man, there are five emails in your...

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