Hybrids, XFE, & Active Fuel Management

572 topics in this forum

1. Mpg When Towing 1 2

   By twh7mm, June 23, 2011
   • 23 replies
   • 8.5k views
   • 
   • CKNSLS
   • December 27, 2013

3. Should I buy a Sierra SLT w/5.3l AFM? Or avoid it? 1 2 3

   By Nvd, November 16, 2012
   • 33 replies
   • 14.7k views
   • 
   • mike94silverado
   • December 26, 2013

4. AFM Problem

   By nashss, April 17, 2012
   • 10 replies
   • 4.4k views
   • 
   • Daryl Z71
   • October 16, 2013

5. Declining MPG's

   By jester73, December 28, 2012
   • 10 replies
   • 3.3k views
   • 
   • GTBULLITT68
   • February 27, 2013

6. 800HP Chevy electric truck

   By Silverado4x4, January 15, 2013
   • 1 reply
   • 2.5k views
   • 
   • Nvd
   • January 25, 2013

7. Mpg and ethanol

   By Matte454, December 17, 2012
   • 9 replies
   • 2.5k views
   • 
   • MikeNH
   • January 23, 2013

8. 6.2 And Premium Fuel 1 2 3

   By Baja 252, July 9, 2010
   • 33 replies
   • 13.8k views
   • 
   • Chris
   • December 14, 2012

9. Fuel mileage update

   By sic lsx, October 18, 2012
   • 5 replies
   • 2.5k views
   • 
   • Prokopchuk_9
   • October 22, 2012

10. Wow! New Plugs = +20% Better Mpg

    By rt66er, April 4, 2011
    • 14 replies
    • 6.2k views
    • 
    • Morgan1986
    • October 18, 2012

11. How to tell when AFM is activated?

    By bdox, August 16, 2012
    • 9 replies
    • 15.3k views
    • 
    • Coolmaker
    • August 20, 2012

12. New silverado 5.3 gas mileage question? 1 2

    By Kody, December 24, 2011
    • 20 replies
    • 9.2k views
    • 
    • music
    • July 21, 2012

13. MPG vs. changing weather 1 2

    By 99gst_racer, December 19, 2011
    • 23 replies
    • 4.8k views
    • 
    • 99gst_racer
    • June 12, 2012

14. 5.3l Gas Saving Mods? 1 2 3

    By Badshot, May 10, 2011
    • 42 replies
    • 28.5k views
    • 
    • MedicPilot
    • April 10, 2012

15. Reduction In Mileage Tire Change 245 To 265 1 2

    By rat454, October 19, 2011
    • 18 replies
    • 21.3k views
    • 
    • rat454
    • March 8, 2012

16. Gas mileage 1 2

    By Mteezy94, February 16, 2012
    • 17 replies
    • 4.8k views
    • 
    • AGT
    • February 20, 2012

17. Lifted or Leveled Hybrid?

    By truebluecrew, February 16, 2012   

    • hybrid
    • 0 replies
    • 3.8k views
    • 
    • truebluecrew
    • February 16, 2012

18. Thread To Discuss Hybrid Silverado/sierra Fuel Savings Techniques

    By beofotch, January 10, 2011
    • 5 replies
    • 4.2k views
    • 
    • truebluecrew
    • February 16, 2012

19. 87 cheaper than E85 1 2

    By ambro_52, December 27, 2011
    • 18 replies
    • 4k views
    • 
    • Nick The Great
    • January 23, 2012

20. e-85 equivilent to 104 octane? 1 2

    By 2010LTZ4x4, November 10, 2011
    • 24 replies
    • 4.8k views
    • 
    • MikeNH
    • January 15, 2012

21. Lower Gears Higher Highway Mpg? 1 2 3

    By TheGreekIndian, December 25, 2010
    • 44 replies
    • 22.1k views
    • 
    • kstruckcountry
    • January 14, 2012

22. 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
    • 4k views
    • 
    • ambro_52
    • January 11, 2012

23. Running premimum gas 1 2 3

    By gmyeah, December 15, 2011
    • 35 replies
    • 8.2k views
    • 
    • kstruckcountry
    • January 8, 2012

24. 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
    • 6.2k views
    • 
    • BlackZ71Silverado
    • January 1, 2012

25. 2500hd 6.0l Gas Mileage. 1 2

    By mrose, December 13, 2010
    • 27 replies
    • 28.7k views
    • 
    • 8.1HD/ALLISON
    • December 25, 2011

26. 1 St E-85 Fill Up 1 2

    By FrankJB, May 22, 2011
    • 27 replies
    • 6.2k views
    • 
    • the blur
    • December 19, 2011