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I've been changing my oil at 5000 intervals and have sent 3 samples in for testing. All three came back with the suggestion that I could run longer intervals.

Interesting that Don mentioned GM might be moving to a 3000 miles oil change interval on the L87

I like this approach. Mine is that if their thumbnail includes a shocked or overly expresive face shot I'm taking a hard pass.

In his coverage of the 6.2 recall Getty's Garage brought up an interesting concern about the move to a higher viscosity oil and collapsable lifters. His concern was that the lifers are designed to work with 0W-20 and that moving to 0W-40 could exacerbate the issue with failing lifters.

You might be right. It's possible I'm misremembering something I read on the internet as actual documentation I had for my truck. According to GM Power Solutions, the LZO, which is what I have is built in Flint. It's possible I took this to mean that engines, including the 6.2 might not be...

Its not on this sticker. I thought it might come up when you scan the QR code but thats just the VIN, RPO's and the paint code. I'm almost positive I had this info when I bought the truck but can't remember where I found it.

IIRC its on the Drivers Door sill sticker. I'll check next time I'm at my truck

If there hadn't been an NHTSA investigation would GM have done the recall or would they still be dealing with it as isolated events?

I'm seeing more and more 6.2L owners on reddit and various forums asking if they should trade in thier 6.2's. I wonder how the Stop Sale affects the dealers ability or willingness to take a 6.2 as a trade in. Does the Stop Sale mean they can't do it? Does it mean that they have less incentive to...

I didn’t get the sense he was trading in the AT4X becuase of the 6.2 issue, rather that he decided he'd rather have the EV. But if you're right about his motivation then I agree its a bit of an over reaction Was the engine also assembled in Mexico. My truck was assembled in Mexico but the...

Interesting video. As I was watching though I was struck by how much of the 'hurt' is either something that I'm OK with or something that I positive about. Other than price and reliability I just can't get onboard with the other concerns, though understand why others may feel differently.

Just an update, the new firmware that allows manual regens only works on the newer iDash Pro and iDash Pro Data, and not the older classic iDash. If you already own the older classic iDash or iDash Data Monster and own a 3.0L Duramax (not sure if this applies to the 6.7 Duramax) Banks will sell...

Another interesting post on reddit. The OP had been working with a dealer to trade in his paid off 24 AT4X 6.2 for a Sierra EV. Now the dealer is declining the trade in. https://www.reddit.com/r/gmcsierra/s/W8pXYcS9nD

I've been very happy. Only issue I had was an intermittent CEL. This was fixed with an ECM update, under warranty, about 8000 miles ago, and has not been a problem since.

No more fitting place to interview a hotshot than a rest stop. Interesting video.

I bought an GMC 1500 AT4 3.0L last year as my retirement truck, even though I decided to put retirement off for another 4 or 5 years. This forum is an awesome source of information and thankfully free of negativity. A great bunch of guys and gals to help with any questions you might have.

Maybe I've just been lucky but I haven't had any reliability issues with tech. My issue is when they tie the tech to a subscription service, particularly if that subscription is the only way to use the tech. I was able to dump OnStar and maintain the Google features I like such as the inbuilt...

Hand crank windows but no 8 track player? Sounds like a missed opportunity.

Another reddit post with a copy of the recall https://www.reddit.com/r/gmc/s/u2yubmwI1f Long and short is that dealers must perform an inspection of all 6.2L vehicles, new and old, in thier inventory. Any vehicles tgat fail the inspection cannot be sold. Vehicles that pass inspection can be...

https://www.reddit.com/r/Silverado/s/r24lVHydjI Granted, source is a Reddit post, but wow!