Page 3 of 3 FirstFirst 123
Results 41 to 60 of 169

Thread: LBZ Fuel Mileage

Hybrid View

Previous Post Previous Post   Next Post Next Post
  1. #1

    Default

    No, I did not adjust the speedometer for the bigger tires..
    And as for the MPG. It was just shy of 23mpg and I got it off of the DIC and I calculated it also.

  2. #2
    Join Date
    Jan 2001
    Location
    New Hampshire - Live Free or Die
    Posts
    6,059

    Default

    If you didn't correct the speedo then your actual miles traveled is greater than indicated by the odometer. This will throw both hand calculations and tthe DIC off toward the low side. Additionally, you could now be looking at winter blended fuel.

    If you really got 23 at 70-75mph I'm envious. the best I've been able to manage is 22 at 65 mph. Is yours 2WD?
    The Constitution needs to be re-read, not re-written!

    If you can't handle Dr. Seuss, how will you handle real life?

    Current oil burners: MB GLK250 BlueTEC, John Deere X758
    New ride: MB GLS450 - most stately
    Gone but not forgotten: '87 F350 7.3, '93 C2500 6.5, '95 K2500 6.5, '06 K2500HD 6.6, '90 MB 350SDL, Kubota 7510

  3. #3

    Default

    No It's 4 wheel drive. And I just went out and got the paper that I wrote on last summer. The highest was 22.7mpg. Right after a fill-up and hit the interstate.

    I was told by a guy that he had the gasket around the turbo,(not sure which one) had a crack in it, and he was getting very poor milage.

  4. #4

    Default Fuel Mileage Getting Better

    Just took a trip (Ga. to Tenn. and back) I didn't speed and no heavy load. 21mpg. to 22mpg. Stock. Check mileage both ways. The average and miles /gallons. I had order a bully dog before the trip. Just entered the program last night will update later.

  5. #5
    Join Date
    Feb 2000
    Location
    Maplesville, AL - Home Base
    Posts
    536

    Default

    I drove from Spring City, TN to just south of the Atlanta airport last weekend. I drove at 60mph on cruise, no a/c, and was very light on the throttle. The DIC said 23.4 mpg. This is the best I have seen and this was a 208 mile trip.
    Ed
    KM4STL

    '06 Sierra LBZ 4x4 Crew SB, Titan 52 gallon fuel tank, TTT/Schefenacker Mirrors
    '98 Suburban, 245,000 - sold 7-4-06

  6. #6
    Join Date
    Sep 2008
    Location
    Florida
    Posts
    77

    Default MPG's

    I have an 07 classic (all stock) LBZ 66k miles and I get 12-13 mpg around town and 18-19 on a trip. How accurate is the DIC when watching milage? Mine seems low. I expected a little more, any suggestions to squeeze more mpg's?

  7. #7
    Join Date
    May 2002
    Location
    White Hall, AR
    Posts
    99

    Default Updated Mileage

    Best tank so far 19.02mpg @65mph crusing speed. Going to slow down a bit more this next tank and see if I can squeeze a bit more out

    16.5-17mpg average is the norm for me. 28k miles currently.
    2002 Pewter 2500HD D/A EC SB 4wd Warn 12K SOLD! 103k miles
    2007 White 2500HD CC SB LBZ 4wd Warn 12K Stock

  8. #8
    Join Date
    Mar 2003
    Location
    Sechelt, British Columbia
    Posts
    49

    Default

    Vancouver, BC. to Colorado Springs,CO and back, pulling a 6800lb Bigfoot RV 13.2 MPG.(DIC)
    2016 LML 3500 D/A Black CC High Country , Towing a 29ft Big foot trailer

  9. #9
    Join Date
    Sep 2000
    Location
    Powder Springs, GA, USA
    Posts
    26

    Default

    Just picked up my 07 and driving home on the flat: first tank 19.5 mpg and the seond tank through the mountains between Nashville and Atlanta on I-24 18 .5 mpg. I was running 70-75 (1900-2000 Rpm) in Drive.

    I wonder if I shifted to Manual if the TC will stay locked up better?
    Barry USN (Ret)
    07 GMC Classic,LBZ,CCSB,4X4,SLT, 60K mi, Edge Evo Race w/cts, EGR Blocker, PCV Reroute, Helmholtz Plug, DE Down Pipe and Quiet Tone 4" TB Exh, TransGo Jr, Allison Deep Pan, Suncoast Filter Lock, PPE Airbox Mod, Amsoil Fluids, Formula One Tint, Undercover Tonnau, H2 Wheels, 285 Tera Grapplers, Fab Four Rear Bumper, Weather Tech SWD's, Sprayin Bedliner, Garmin Nuvi 1490T, Pintle Hook, PPE Tie Rod sleeves, Cognito Pit/Idler Arm Braces, Amsoil Dual Bypass Filters
    06 Jetta 1.9L TDI,DSG, RC 1+ tune,EGR Delete, M101A2 3/4 ton trailer,NRA Benefactor Member

  10. #10
    Join Date
    Sep 2008
    Location
    Florida
    Posts
    77

    Default

    How many miles and is is stock? Stock tires, air filter, exhaust, intake, etc.

    Quote Originally Posted by mmcm267 View Post
    Just picked up my 07 and driving home on the flat: first tank 19.5 mpg and the seond tank through the mountains between Nashville and Atlanta on I-24 18 .5 mpg. I was running 70-75 (1900-2000 Rpm) in Drive.

    I wonder if I shifted to Manual if the TC will stay locked up better?
    2007 GMC SIERRA CLASSIC
    6.6L LBZ 136,000 miles
    Diablo Sport Predator Tuner (MPG Tune)
    LT245/75R16E

    "Just because you are unique, does not mean you are useful."

  11. #11

    Default 2006 duramax lbz

    Friday the abs and brake light came on and the ecm went dead.I tow the truck to a chev on sat. and they said the ecm was fried.any one having this problem.

  12. #12
    Join Date
    Dec 2005
    Location
    Klamath falls/keno Oregon
    Posts
    480

    Default

    21-23 on a stock engine, 420,000 miles on the clock. That’s Highway mileage..
    06 1ton 4X4 duramax/6speed ext.cab WT
    Hummer wheels :^)
    dual lift pump
    Banks air intake

  13. #13
    Join Date
    Jan 2001
    Location
    Knoxville,Tennessee
    Posts
    2,646

    Default

    Just went from Knoxville TN to Fredericksburg VA round trip 2006 Sierra 3500 Dooley. Hand calculated 15 1/2 up 16 1/2 back. Just a couple suit cases in the back. Dash computer had me at 14 1/2.
    "The Constitution is not an instrument for the government to restrain the people, it is an instrument for the people to restrain the government."
    -Patrick Henry


    A5150nut
    2006 K3500 D/A
    94 6.5 4x4 5spd Sold

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •