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GM’s recommended oil for the new recall on 6.2L L87

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    • May 27, 2025 at 12:35 pm #866011
      davey
      Participant

      If I don’t get a new engine and will get a new thicker oil (0W 40) ,that is what they are recommending. My question is: do I have a choice on what oil they put in my truck. I have a 2021 GMC Sierra AT4. I would prefer a 5W 30 oil replacement. Do I have a say? Any thoughts on this ?

    • May 27, 2025 at 10:08 pm #866130
      Parts Man1
      Participant

      At as a dealer we have no idea. The latest update says nothing about 0-40 weather you a engine or not. Myself, I’d use 0-40 before I’d use 5-30.

    • June 8, 2025 at 8:59 pm #867605
      Geo3
      Participant

      I thought I read an article that stated NHTSA had not approved the oil change solution to solve the 6.2L manufacturing defects?

    • June 8, 2025 at 11:09 pm #867606
      davey
      Participant

      I haven’t heard that. You would think that would be all over the internet.

    • June 9, 2025 at 10:49 pm #867734
      Parts Man1
      Participant

      The latest bulletin from GM #N252494000 for engine that passes the picoscope test dealers are to change the oil and filter with 0-40 oil, along with a new oil cap. For those that fail GM will replace the engine and use 0-20 oil. GM says in the bulletin this is a parts failure not a oil problem

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