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  1. J

    Wheel "hop"?

    2025 Yukon AT4 Ultimate 3.0 Dmax. I was driving home a few days ago after some rain. There weren't any standing water puddles, but the road was wet. Sitting at a red light I wasn't paying attention & hadn't noticed the light had turned green & the cars were well ahead of me. Trying to avoid...
  2. J

    Early oil change opinions

    I was just wondering what the general school of thought was here considering an early first oil change. My 2025 LZ0 currently has about 600 miles on it & in about 5 weeks I'm taking it on a 2000+ mile road trip. I've read all I can find & it generally falls into 2 categories: 1. Do your first...
  3. J

    Stubborn voice commands?

    On my '25 Yukon whenever I push the speak button and make a Sirius XM radio station request of a station not programmed, my request pops up on the big screen "word for word" But then the female assistant voice always says something to the effect of "I don't recognize your command." I went to the...
  4. J

    High oil temperature?

    I know there are lots of discussions on here about high Transmission fluid temperature on the LZO's, but my question is a bit different. (I think) I just took delivery of my 2025 Yukon LZO last week and took it out for a little "shakedown cruise" today. On the gauge page it shows pretty much...
  5. J

    Yeah, yeah, yeah another fuel treatment question...

    I've read MANY discussions on Diesel fuel treatments (Yes/no, brands to use/not use, etc.) But I don't recall it being discussed in this manner: My local (small truck) Diesel shop says YES use treatment because modern "low Sulphur" diesel fuel doesn't lubricate the high pressure fuel pump well...
  6. J

    O.E. Tires

    When purchasing new vehicles in the past, I've done tons of research on pretty much everything EXCEPT the tires, & it burned me a time or two. I know sometimes the O.E. tires can be pretty good & sometimes you can't get them off your vehicle soon enough. (Wrangler SR-A's) I see my 2025 Yukon AT4...
  7. J

    Trans temp confusion

    I have a 2025 Yukon AT4 Ultimate on order. It should be here by the end of July. (LZ0 power) But I'm confused. I have no intention of towing, but on one hand I see people installing things like the PPE Trans bypass valve to drastically lower temps (150F give, or take) BUT, on the other hand, I...

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