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  1. M

    2020 3.0l duramax

    Second UOA for this truck. Ran to 5000miles and went ahead and changed before summer towing season begins. Looks good enough to me. Still super happy with the truck
  2. M

    2020 3.0l LM2 duramax FF UOA

    LONG time reader and finally found a reason to join and contribute! (I’ve always been able to find what I’m looking for) I can’t find any LM2 results or any of the AC DELCO Dexos D oil reports. Here’s my 700 mile factory fill UOA. Should be AC delco 0w20 light duty diesel oil. I’ll run to...