Hybrids, XFE, & Active Fuel Management

428 topics in this forum

1. Lower Gears Higher Highway Mpg? 1 2 3

   By TheGreekIndian, December 25, 2010
   • 44 replies
   • 21,435 views
   • 
   • kstruckcountry
   • January 14, 2012

3. Does my mileage sound right?

   By JustinB, January 7, 2012   

   • 5.3
   • mpg
   • (and 7 more)

     Tagged with:

     • 5.3
     • mpg
     • 2008
     • 0 vin
     • ltz
     • silverado
     • flex fuel
     • mileage
     • maintenance
   • 9 replies
   • 3,743 views
   • 
   • ambro_52
   • January 11, 2012

4. Running premimum gas 1 2 3

   By gmyeah, December 15, 2011
   • 35 replies
   • 7,626 views
   • 
   • kstruckcountry
   • January 8, 2012

5. 2007 5.3L AFM - What is the best hand held tuner for fuel economy

   By 07silly, December 30, 2011   

   • 2007 silverado 34 tires
   • 2007 5.3l afm tune
   • 5 replies
   • 6,022 views
   • 
   • BlackZ71Silverado
   • January 1, 2012

6. 2500hd 6.0l Gas Mileage. 1 2

   By mrose, December 13, 2010
   • 27 replies
   • 27,399 views
   • 
   • 8.1HD/ALLISON
   • December 25, 2011

7. 1 St E-85 Fill Up 1 2

   By FrankJB, May 22, 2011
   • 27 replies
   • 5,684 views
   • 
   • the blur
   • December 19, 2011

8. Truck Caps And Fuel Economy

   By c0boy, April 14, 2011
   • 14 replies
   • 7,195 views
   • 
   • NHSilverado
   • December 15, 2011

9. interesting fuel economy increase

   By uchi, December 5, 2011
   • 3 replies
   • 1,843 views
   • 
   • uchi
   • December 13, 2011

10. Cold Air Intake?

    By pbmboy, August 31, 2011
    • 14 replies
    • 3,645 views
    • 
    • ifshinxs
    • December 3, 2011

11. flex fuel and shelf life ?

    By d.mehrl, November 27, 2011
    • 8 replies
    • 2,033 views
    • 
    • AzDragonLord
    • December 1, 2011

12. Gas Mileage 1 2 3 4 8

    By reidrhollander, February 14, 2011
    • 110 replies
    • 24,249 views
    • 
    • uchi
    • November 30, 2011

13. 07 Silverado Afm Questions

    By nashss, October 6, 2011
    • 3 replies
    • 2,867 views
    • 
    • frdfandc
    • November 26, 2011

14. 2009 Sierra 5.3. Horrible Fuel Economy. Help! 1 2 3

    By Parsonsjb88, October 3, 2011
    • 32 replies
    • 13,411 views
    • 
    • RockySierra
    • November 24, 2011

15. Mpg With 22" Vs 20" Wheels

    By bhsballer76, August 30, 2011
    • 8 replies
    • 6,158 views
    • 
    • BlackZ71Silverado
    • November 6, 2011

16. Top Tier Gas - Citgo?

    By blairlee, October 28, 2011
    • 12 replies
    • 6,472 views
    • 
    • RockySierra
    • November 2, 2011

17. Gas Mileage Mpg Increase With Air Deflector Extension

    By disarticulate, July 8, 2011
    • 12 replies
    • 9,872 views
    • 
    • sic lsx
    • October 26, 2011

18. Tune?

    By BigRed41, October 20, 2011
    • 3 replies
    • 1,379 views
    • 
    • Stevens03
    • October 20, 2011

19. 08 Chev Silverado 1500

    By Ballard, August 18, 2011
    • 0 replies
    • 3,335 views
    • 
    • Ballard
    • September 22, 2011

20. 2011 Gmc Sierra 1500 5.3 4x4 3.42 Axle

    By Horsewithnoname, April 13, 2011
    • 0 replies
    • 16,737 views
    • 
    • Horsewithnoname
    • September 9, 2011

21. Premium Gas = Better Mileage

    By sack1, August 28, 2011
    • 0 replies
    • 6,505 views
    • 
    • sack1
    • September 3, 2011

22. Towing On E-85

    By mike94silverado, April 16, 2011
    • 0 replies
    • 6,554 views
    • 
    • mike94silverado
    • August 20, 2011

23. 2011 Dmax Mpg

    By HDGMC, April 19, 2011
    • 0 replies
    • 5,694 views
    • 
    • HDGMC
    • August 19, 2011

24. Not As Bad As I Was Expecting

    By THABULL, August 18, 2011
    • 0 replies
    • 1,505 views
    • 
    • THABULL
    • August 18, 2011

25. Fuel Efficiency Issues

    By GerryL98, August 1, 2011
    • 0 replies
    • 1,604 views
    • 
    • GerryL98
    • August 3, 2011

26. 6.2l Fuel Economy Mpg

    By zacharywhitson, July 25, 2011
    • 0 replies
    • 2,348 views
    • 
    • zacharywhitson
    • July 27, 2011