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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

44 topics in this forum

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    • 2,284 views
  1. 6.6L programmer

    • 10 replies
    • 1,565 views
    • 19 replies
    • 2,737 views
    • 9 replies
    • 980 views
    • 6 replies
    • 480 views
  2. Oil catch can?

    • 4 replies
    • 375 views
    • 6 replies
    • 607 views
  3. First Oil Change 1 2 3

    • 40 replies
    • 11,311 views
    • 26 replies
    • 2,004 views
  4. Liking the 6.6 gas 1 2 3 4 9

    • 131 replies
    • 29,538 views
    • 20 replies
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    • 4 replies
    • 1,021 views
  5. Dual battery function 1 2

    • 21 replies
    • 1,582 views
    • 0 replies
    • 548 views
  6. 6.6 Fuel Requirements

    • 13 replies
    • 1,997 views
    • 4 replies
    • 1,396 views
  7. Towing ability

    • 7 replies
    • 2,495 views
    • 20 replies
    • 5,538 views
    • 8 replies
    • 1,906 views
  8. Engine failure 1 2

    • 23 replies
    • 8,137 views
  9. Cold/rough start

    • 1 reply
    • 520 views
    • 12 replies
    • 2,039 views


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