6.6L (LML/L5P) & 6.0L (L96/LC8) Tech

224 topics in this forum

1. 6.0 gas engine 1 2 3 4 11

   By cat320, November 3, 2014
   • 157 replies
   • 49.9k views
   • 
   • SierraHD17
   • April 15, 2018

3. Mpg for new gas 2500 1 2 3 4 8

   By Capt Call, April 16, 2014
   • 116 replies
   • 74.5k views
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   • TX.45
   • September 20, 2017

4. Towing with 6.0 Engine? Or Do I Really Need A Diesel? 1 2 3 4 7

   By Whip, July 12, 2015
   • 90 replies
   • 123.1k views
   • 
   • magnum74
   • May 28, 2017

5. 6.0 Exhaust ideas 1 2 3 4 6

   By chevydeth, April 10, 2016
   • 78 replies
   • 35k views
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   • SierraHD17
   • October 13, 2017

6. 2017 6.6 adds 40 hp, or so they say... 1 2 3 4

   By jj46, September 1, 2016
   • 55 replies
   • 14k views
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   • wrc7732
   • October 7, 2016

7. 6.0 oil change interval 1 2 3 4

   By 07Serria, October 7, 2018
   • 53 replies
   • 33.6k views
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   • Cowpie
   • February 8, 2019

8. Which Engine Oil (conventional or synthetic) 1 2 3 4

   By WireBender, June 18, 2017
   • 51 replies
   • 91.9k views
   • 
   • edktm
   • November 5, 2019

9. AC Delco filters suck 1 2 3 4

   By gearheadesw, June 18, 2017
   • 50 replies
   • 15.5k views
   • 
   • gearheadesw
   • September 30, 2018

10. 6.0 performance / fuel economy questions 1 2 3 4

    By BigKahuna, April 10, 2018
    • 47 replies
    • 12.7k views
    • 
    • free88
    • September 7, 2018

11. Reverse lights in towing mirror 1 2 3

    By Lon Bossom, November 19, 2017
    • 39 replies
    • 55.3k views
    • 
    • Redpanda123
    • July 3, 2021

12. 6.2L gas versus 6.6L Duramax 1 2 3

    By wickedone, August 31, 2014
    • 39 replies
    • 125.7k views
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    • Cowpie
    • February 8, 2015

13. Pics and info 2017 2500 Duramax 1 2 3

    By Shagmax, January 28, 2017
    • 37 replies
    • 14.6k views
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    • powerhaulic
    • November 3, 2017

14. Diesel Regeneration 1 2 3

    By Whip, July 12, 2015
    • 37 replies
    • 29.4k views
    • 
    • avalonandl
    • February 4, 2019

15. Removing emissions controls 1 2 3

    By austingta, August 21, 2016
    • 37 replies
    • 52.9k views
    • 
    • X25
    • January 11, 2017

16. Opinions on towing? 1 2 3

    By 2017DenaliHDChris, June 6, 2018
    • 35 replies
    • 12.9k views
    • 
    • Waaazooo
    • November 23, 2018

17. 2016 Tuning advice! Kory Willis or Idaho Rob? Or...? 1 2 3

    By 480Ruger, May 7, 2016
    • 34 replies
    • 22.4k views
    • 
    • Cowpie
    • July 3, 2017

18. 6.0 Oil 1 2 3

    By WANNAFARM2, October 25, 2018
    • 34 replies
    • 12.2k views
    • 
    • Cowpie
    • January 8, 2019

19. 2500HD 6.0 oil 1 2 3

    By T_ClarkEx39, September 15, 2017
    • 34 replies
    • 29.8k views
    • 
    • Cowpie
    • March 3, 2018

20. Help sway the truck decision 1 2 3

    By dcrouse, May 19, 2016
    • 34 replies
    • 5.3k views
    • 
    • ATBT
    • August 2, 2016

21. Official information on the 2017 Duramax is here! 1 2 3

    By matt123, September 29, 2016
    • 32 replies
    • 9.6k views
    • 
    • Peterd
    • February 19, 2017

22. Hit the lots 1 2 3

    By Ewess, November 20, 2016
    • 32 replies
    • 8k views
    • 
    • Ewess
    • January 29, 2017

23. Max tow today 1 2 3

    By austingta, October 11, 2016
    • 31 replies
    • 6k views
    • 
    • alchrist3
    • November 22, 2016

24. DEF heater failure and engine light 1 2

    By Jnich17, November 10, 2017   

    • 2015 duramax
    • 28 replies
    • 80.4k views
    • 
    • JLP01
    • March 16, 2022

25. High Idle Regen? 1 2

    By nrsk4u, March 1, 2017   

    • regen
    • 26 replies
    • 40.4k views
    • 
    • Waaazooo
    • January 20, 2018

26. 2017 model year = new Duramax engine 1 2

    By 2018GMC, November 20, 2013
    • 25 replies
    • 81.7k views
    • 
    • Chevy man 72
    • April 15, 2016