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6.6L Gas V8 & HD Transmission Powertrain (L8T/MYD)

Technical powertrain discussion specifically for the 2020+ L8T 6.6L Gas V8 engine and MYD 6-Speed HD transmission combination on the 2020 Chevrolet Silverado 2500 / 3500 or 2020 GMC Sierra 2500 / 3500


164 topics in this forum

  1. Oil Consumption 1 2 3

    • 36 replies
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    • 29 replies
    • 14.4k views
    • 57 replies
    • 17.3k views
  2. 6.6L programmer 1 2

    • 23 replies
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    • 22 replies
    • 3.1k views
    • 19 replies
    • 3.2k views
    • 16 replies
    • 2.8k views
    • 15 replies
    • 1.5k views
  3. My truck is leaking oil

    • 5 replies
    • 5.7k views
    • 5 replies
    • 680 views
    • 3 replies
    • 681 views
    • 55 replies
    • 11.6k views
    • 13 replies
    • 1.7k views
    • 4 replies
    • 2.2k views
    • 13 replies
    • 2.7k views
  4. Normal L8T noises?

    • 7 replies
    • 2.3k views
    • 5 replies
    • 780 views
  5. scan gauge 3 1 2 3 4

    • 45 replies
    • 2.8k views
  6. Add engine oil!!! 1 2 3 4 17

    • 241 replies
    • 50.6k views
    • 13 replies
    • 3.7k views
    • 21 replies
    • 11k views
    • 16 replies
    • 4.4k views
  7. Easy Oil Change

    • 6 replies
    • 2.1k views
    • 1 reply
    • 1.4k views
  8. 2020 Silverado 2500 HD

    • 0 replies
    • 975 views


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