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  1. Antonm

    2021 GMC Yukon Denali Oil Burn

    Conventional wisdom absolutely does not say it wears the same. Viscosity is key to preventing metal on metal wear. The argument here between the oils would be does the 0w20 have enough viscosity,,,if it does,,, then there would be no benefit to thicker oils. And if the 0w20 did have enough...
  2. Antonm

    Engine failures

    But nothing,,, no reason to make it easier on identity thieves by leaving low hanging fruit. I'm a partially disabled veteran and the VA gets hacked about twice a year and loses everyone's information (I've gotten several of the "we're sorry, but your information got hacked again" letters from...
  3. Antonm

    Another 6.2 failure

    I believe you are mistaken and the LS/LT are also reverse flow (meaning the heads get the cold water first, before the block). If it bothers me enough I'll pull up some diagrams of the cooling system. ...
  4. Antonm

    Another 6.2 failure

    The PCM is pulling ignition timing, but its called "pre ignition detonation" so it's happening before the spark plug fires, as such changing when the spark plug fires can only do so much. The big advancement with the LS engines (carried on with the LT's) that not many talk about is that GM...
  5. Antonm

    Engine failures

    You might want to blackout your personal information on that attached PDF oil analysis report. As it is now, you have your name , address, and phone number posted on the internet for all to see. ...
  6. Antonm

    2022 Yukon Window Tint

    They're just being lazy or don't want to mess with it (or maybe don't want to mess with you, perhaps they think you're a cop or something), but it certainly can be (as has been) done. Its legal here in Texas to tint the windshield (there are rules about how dark, but it can be done) and it's...
  7. Antonm

    I have a 2021 chevy tahoe

    I didn't ask the internet for advice, I was answering the question of the original poster (maybe read the thread next time). Affording it isn't the issue for me personally (although it is certainly a big consideration), its warranty voiding. When we purchased this expensive Tahoe (high country...
  8. Antonm

    I have a 2021 chevy tahoe

    Mostly because people don't want the POS they just spend $90K on breaking down and leaving them stranded on the side of the road. And if you're paying attention at all (which you obviously aren't) then you'd know that DFM/ AFM failures are far from an isolated case. ...
  9. Antonm

    I have a 2021 chevy tahoe

    The title of the thread says you have a 2021, the DOD (displacement on Demand) system used in the 21+ is called DFM (dynamic fuel management) and differs greatly from the previous generation's AFM (active fuel management). Basically it's gonna be real expensive to delete the DFM because you'll...
  10. Antonm

    Experiences with Wheelskins Steering Wheel Covers for Your Tahoe (or Other Vehicle)?

    I have a wheelskins cover on my old 97 Dodge Cummins truck. It's been on there for at least seven years now and still doing fine, I like it and would buy another if I was looking for a steering wheel cover. ...
  11. Antonm

    Blackstone sample on replacement engine after 13k miles

    lol, looks like this thread beat YouTube to the punch on 0W40 oil shearing down to the 30 weight range. Perhaps the 0W20 oils that are recommended for these engines don't shear down as much, but dang, starting out with a 20 weight, and it can only really ever go down,,,no thanks GM. ...
  12. Antonm

    Nice Ride

    The VAST majority of timing belts are dry (not in contact with oil). And like I said earlier, I have had multiple personal experiences over the decades with oil wet belts in various applications, as a result, I will not buy an engine that uses one (just like I won't buy anything with a CVT...
  13. Antonm

    Maybe not all 6.2's have the bad lifter bore/ bearing wear issues

    Until the epoxy comes off and clogs the oil pickup tube screen or the magnet gets caught up the rotating assembly after it falls off the epoxy anyway. …
  14. Antonm

    Maybe not all 6.2's have the bad lifter bore/ bearing wear issues

    IDK, I been paying for convenience for the past several years. I have those expensive magnets on just about everything I own, even my John Deere zero turn lawn mower. …
  15. Antonm

    Maybe not all 6.2's have the bad lifter bore/ bearing wear issues

    Oh for sure, the filter mag is just paying for convenience, like buying bottled water at the gas station vs grocery store, same bottle of water , but the gas station charges twice as much. ...
  16. Antonm

    Blackstone Oil Sample Analysis Report, EcoTech3 5.3

    I like Blackstone a lot (given them at least a few thousand dollars now over the years), but I swear I think they make up those universal averages numbers. I've got several reports for different vehicles and a few of my cars I've owned for awhile have 5 or more samples done on them, not once...
  17. Antonm

    Maybe not all 6.2's have the bad lifter bore/ bearing wear issues

    Ever heard of fiiltermag (line below to what I'm talking about). Seems way less risky that inserting a magnet thats only held in place with epoxy into the actual pan. These just attached the side of the oil filter and retain all the metal in there...
  18. Antonm

    Maybe not all 6.2's have the bad lifter bore/ bearing wear issues

    That kinda makes sense because there are probably 7 or 8 of the 5.3 engines out there for every 1 of the 6.2 engines. ...
  19. Antonm

    2021 5.3L Tahoe Alternator voltage?

    Unfortunately it’s not as simple as what’s the running voltage. These newer cars have a “smart” alternator that turns itself off and on and changes its voltage depending on several factors/ sensor inputs, why does it do that,,,for fuel economy. Yeap another previously reliable system that’s been...
  20. Antonm

    Blackstone sample on replacement engine after 13k miles

    Have you ever sent an oil sample in on the Mercedes? We traded in a 2013 GL450 (an x166 with an m278 engine) on the Tahoe. We bought it new in late 2012 and it was well taken care of its whole life. A lot of Mercedes gas engines of the era are kinda known for piston slap which shows up as high...
  21. Antonm

    Blackstone sample on replacement engine after 13k miles

    Rotella might have to more zinc and phosphorus in it than the catalytic can take. While great anti-wear additives they kinda destroy gasoline emissions equipment. Thats why most oils have lowered the ppm concentration of zinc & phosphorus and went with more molybdenum instead. …
  22. Antonm

    Blackstone sample on replacement engine after 13k miles

    The first number ( the “0” in 0w40) isn’t important unless you live in a cold climate. The second number (the “40” in the case of 0w40) is the oil weight once you’re actually driving. I live in south Texas, never really gets cold so I don’t care to much about that cold flow/ winter number. …
  23. Antonm

    Blackstone sample on replacement engine after 13k miles

    IMHO absolutely. I think it being on the low side for a 40 is a good thing for this application. …
  24. Antonm

    Blackstone sample on replacement engine after 13k miles

    I used Mobil 1 0W40 euro oil the last couple oil changes. It's technically a 40 weight oil, but just barely, the centistoke viscosity range for 40 weight (at 100C) is 11.1 -14.5, the mobil 1 euro stuff came in at 11.27, so in the range for a 40 weight , but just freaking barely. And that was at...
  25. Antonm

    Blackstone sample on replacement engine after 13k miles

    Looks pretty good, nothing real alarming that I see anyway. Just out of curiosity, what weight and brand oil was used? ...

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