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  1. 2020+ LM2 Duramax Powertrain
    I sold my 2016 2500HD Duramax and got the Sierra with the 3.0. I had to drive a ways to get the cab/bed/engine configuration I wanted and was excited to get it home! I had a 350 mile run to get acquainted. Awesome drive home! Next morning I have an immediate mil and engine in reduced power mode...
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