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  1. 11-16 LML Duramax Powertrain
    got a 2016 LML with cts3 on it, it shows my soot level is at 10g when i start up it says cleaning filter and keep driving, after driving message will clear. Once i turn truck off and back on message pops back up again, soot level is no where near the 44g regen level just wondering if anyone...
  2. Alternative Fuels Diesel Additives Lubricants
    It has come up quite often, especially with the rumors of a DEF shortage now lurking. Figured I would explain this to cover the 30k repetitive questions that have come up First and foremost, regardless of the pretty packaging and nice font that the companies use, GM applications DO NOT work...
  3. General Discussion
    My 2011 LML seems to be stuck in regen….I have no idea what is going on….it has been driven over 180 miles and ran for around 4 hours and it’s still in regen Any ideas what could be wrong?
  4. 2020+ LM2 Duramax Powertrain
    I just got a 2020 Chevy Silverado 1500 LT with the 3.0L Durmax, 4x4. Absolutely love it. I’ve been very attune to limiting idling after remote start on cold mornings (interesting fact my 2017 V6 would time out and shut off the engine after remote starting, my 2020 diesel where long idles are...
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