6.6L Gas V8 (L8T)

256 topics in this forum

1. Anyone use CRC GDI Intake cleaner (or equiv)?

   By mrjulian416, July 14, 2021
   • 3 replies
   • 7.6k views
   • 
   • mrjulian416
   • August 23, 2021

2. Shifting from Drive to Low

   By Another JR, August 19, 2021
   • 8 replies
   • 5.6k views
   • 
   • mrjulian416
   • August 19, 2021

3. What to do? 1 2 3 4

   By MacLaren, February 25, 2021
   • 45 replies
   • 14.1k views
   • 
   • Another JR
   • August 15, 2021

4. Towing ability 1 2

   By Drumnatural, August 9, 2020
   • 18 replies
   • 18.1k views
   • 
   • Another JR
   • August 13, 2021

5. 85 vs 87 Octane

   By Frank Fontana, June 23, 2021
   • 7 replies
   • 3.7k views
   • 
   • greatmizzou
   • August 12, 2021

6. 6.6L Gas will be fine, right? 1 2 3 4 6

   By Z71RAD88, February 25, 2021
   • 83 replies
   • 31.3k views
   • 
   • finn5033
   • July 14, 2021

7. Borla catback exhaust 1 2

   By Spangled, July 26, 2020
   • 27 replies
   • 23.5k views
   • 
   • Grjfer
   • July 9, 2021

8. First Oil Change 1 2 3 4

   By texasnavy05, January 29, 2020
   • 59 replies
   • 122k views
   • 
   • Adamace1
   • June 20, 2021

9. 2020 Silverado 2500 Lt 6.6 Gas lifter problems

   By Jesus Aguirre, June 13, 2021
   • 1 reply
   • 6.4k views
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   • Ray Pickle
   • June 17, 2021

10. Potential Buyer 1 2

    By uga40, April 30, 2021
    • 15 replies
    • 5.7k views
    • 
    • KARNUT
    • June 13, 2021

11. Top Tier Gas a must for our Direct Injection Engines?

    By Jimmy-Mack, May 30, 2021
    • 7 replies
    • 5.8k views
    • 
    • THE YETI
    • May 31, 2021

12. 2020 GMC 2500 6.6 GASSER leveled with 35's MPG????

    By Gabe Bunn, October 1, 2020
    • 11 replies
    • 18.6k views
    • 
    • Ryan Morgan
    • May 19, 2021

13. 6.6 Gas Tranny cooler line-CHECK

    By CRApex, March 3, 2021
    • 3 replies
    • 4.3k views
    • 
    • Another JR
    • April 22, 2021

14. Factory ordering, any updates?

    By SnowsledBen, April 5, 2021
    • 9 replies
    • 3.5k views
    • 
    • maplegrovetruck
    • April 17, 2021

15. Temp and Volt Gauge Readings - normal?

    By Jimmy-Mack, March 28, 2021
    • 8 replies
    • 5k views
    • 
    • Wxman
    • April 13, 2021

16. At4 vs Denali ride quality

    By CaptainMorganNC, March 13, 2021
    • 14 replies
    • 19.4k views
    • 
    • MTU Alum
    • April 9, 2021

17. Sulfur smell

    By jsward12, April 8, 2021
    • 0 replies
    • 1.2k views
    • 
    • jsward12
    • April 8, 2021

18. 2022 Release

    By CaptainMorganNC, March 23, 2021
    • 8 replies
    • 9k views
    • 
    • SnowsledBen
    • April 5, 2021

19. L8T 6.6L Capabilities

    By C/K Man, February 10, 2021
    • 3 replies
    • 4.1k views
    • 
    • Sierra Jon
    • March 23, 2021

20. Shopping for a new HD truck. 1 2 3

    By Bikemobile, December 26, 2020
    • 31 replies
    • 9.7k views
    • 
    • kenny_r
    • March 21, 2021

21. Water-Meth

    By L8T, March 18, 2021
    • 4 replies
    • 1.6k views
    • 
    • Grumpy Bear
    • March 19, 2021

22. Towed the boat for the first time...

    By mrjulian416, March 18, 2021
    • 2 replies
    • 3.2k views
    • 
    • gearheadesw
    • March 18, 2021

23. Oem Power Running Baords

    By NCCaptainMorgan, March 18, 2021
    • 0 replies
    • 2k views
    • 
    • NCCaptainMorgan
    • March 18, 2021

24. Pedal Commander

    By MacLaren, March 4, 2021
    • 5 replies
    • 5.6k views
    • 
    • Grumpy Bear
    • March 17, 2021

25. AT4 HD Auto Tailgate

    By CaptainMorganNC, March 14, 2021
    • 1 reply
    • 1.1k views
    • 
    • L8T
    • March 16, 2021