Results 1 to 18 of 18

Thread: 98 Tahoe - Fuel consumption

  1. #1
    Join Date
    Oct 2002
    Location
    Pefferlaw, Ont
    Posts
    417
    My Mood
    Drunk
    Time Online: 6 Days 15 Hrs 10 Mins 27 Secs
    Avg. Time Online: 32 Secs
    Rep Power
    16

    98 Tahoe - Fuel consumption

    I am getting 8km/lit (18.82 miles/US gallon) normal and towing it drops to 6km/lit (14.11 miles/US gallon). It has a 5.7 (if that helps)

    Is this normal? or should i look at a after market chip/program.
    89 YJ, 4.0 HO, 999 Auto, Twin Sticked D300, SOA, Full width 5:38 D60 front ARB, 5:38 full float D60 rear Detriot, 35 spline shafts, disc brakes all round, aluminum rockers, cage mounted racing seats, custom dash, tilt /quick disconnect steering, 39.5 TSLs on hummer wheels with double bead locks, full hydro steering, hydro boost brakes, 8274 w/synthetic rope, CJ front clip & tail gate, Custom Olive Green Paint Job !

  2. #2
    Join Date
    Feb 2004
    Location
    north york.
    Posts
    2,245
    My Mood
    Busy
    Time Online: 2 Mths 4 Wks 17 Hrs 25 Mins 49 Secs
    Avg. Time Online: 7 Mins 19 Secs
    Rep Power
    0
    im no expert but i get pretty much the same with my 99 dodge 5.9 cummins.
    i think your doing just fine.

  3. #3
    Join Date
    Jul 2003
    Location
    Beamsville
    Posts
    1,043
    My Mood
    Cool
    Time Online: 3 Mths 4 Days 8 Hrs 36 Mins 1 Sec
    Avg. Time Online: 7 Mins 46 Secs
    Rep Power
    16
    yep that seems about right
    Professional lunatic
    TJ V3.0 in the works "This is only temporary, unless uhhhh..... it works."
    I get confused once numbers get bigger than I can count on my appendages. I'm only good up to 21!
    one quarter turn before something breaks is a good torque spec.

  4. #4
    Join Date
    Oct 2005
    Location
    Vankoughnet
    Posts
    2,866
    Time Online: 9 Mths 1 Wk 1 Day 10 Hrs 18 Mins 48 Secs
    Avg. Time Online: 22 Mins 57 Secs
    Rep Power
    15
    LOL, I would love to get those numbers..

    my 04 2500HD 6.0L gets:
    16 mpg empty combined city/hwy
    11 mpg towing the jeep
    6 mpg towing the jeep with the camper on it.

  5. #5
    Join Date
    Jul 2003
    Location
    Beamsville
    Posts
    1,043
    My Mood
    Cool
    Time Online: 3 Mths 4 Days 8 Hrs 36 Mins 1 Sec
    Avg. Time Online: 7 Mins 46 Secs
    Rep Power
    16
    I have never calculated min because I just plain do not want to know! Maybe on my way to NL

  6. #6
    Join Date
    Oct 2005
    Location
    Vankoughnet
    Posts
    2,866
    Time Online: 9 Mths 1 Wk 1 Day 10 Hrs 18 Mins 48 Secs
    Avg. Time Online: 22 Mins 57 Secs
    Rep Power
    15
    One trip two years ago heading to Parry Sound fully loaded, I did not even make it to the Sound on a full tank from Burlington, major head wind the whole way. 230 km / 92 liters of fuel. Thats 2.5km/liter or 40 liters/100km or 5.8 mpg!!! Still not that bad considering it was an 18,000 pound load into a 40/50 km/hr head wind!!!

  7. #7
    Join Date
    Mar 2004
    Location
    Hillsburgh
    Posts
    2,599
    Time Online: 5 Mths 3 Days 13 Hrs 31 Mins 49 Secs
    Avg. Time Online: 12 Mins 39 Secs
    Rep Power
    16
    I had that happen to me going to parry sound as well. Had a 1/4 tank left coming back the same weekend though....
    Cigar chomper!

    Youth, health and skill are no match for age, experience and treachery

    Dana 60's do break when hitting stumps at 60kmh....

  8. #8
    Join Date
    Jun 2002
    Location
    Hockley Valley, ON
    Posts
    5,112
    Time Online: 4 Mths 2 Wks 6 Days 22 Hrs 22 Mins 4 Secs
    Avg. Time Online: 11 Mins 37 Secs
    Rep Power
    21
    What do you tow Popeye? Those number's aren't that bad.

    My '99 Diesel Suburban gets 16 US MPG empty, and 14 towing 7,000 lbs @110 KM/h. I know I can squeeze more out of it, and I'm slowly going through things to improve the fuel economy. The diesel has the potential for more, and the cheap veggie juice is a bonus

    I'd do the intake and exhaust first before a chip.

  9. #9
    Join Date
    Jan 2009
    Location
    Burlington
    Posts
    77
    Time Online: 7 Hrs 24 Mins 27 Secs
    Avg. Time Online: 1 Secs
    Rep Power
    9
    My boss drives the exact same year/make/model truck and he gets the EXACT same numbers you get! He tallys it for reference for towing as well. So you're doing just fine!
    www.staangsFAB.com
    NAPA Parts Professional.
    Staang's photographer, videographer & other half!!!
    www.youtube.com/staang
    Pirate for life.

  10. #10
    Join Date
    May 2006
    Location
    West Coast
    Posts
    2,481
    My Mood
    Yeehaw
    Time Online: 6 Mths 2 Wks 9 Hrs 24 Mins 5 Secs
    Avg. Time Online: 16 Mins 1 Sec
    Rep Power
    14
    That could be above average

  11. #11
    Join Date
    Oct 2002
    Location
    Pefferlaw, Ont
    Posts
    417
    My Mood
    Drunk
    Time Online: 6 Days 15 Hrs 10 Mins 27 Secs
    Avg. Time Online: 32 Secs
    Rep Power
    16
    Thanks guys, i feel better now.

    (then again i come from a DD that does 15km/litre)

    Muddawg - The Jeep and trailer weighs in around 2650kg (trying to keep it under the 2800Kg limit).
    Last edited by Popeye; 08-10-2009 at 07:46 PM.

  12. #12
    Join Date
    Jun 2002
    Location
    Hockley Valley, ON
    Posts
    5,112
    Time Online: 4 Mths 2 Wks 6 Days 22 Hrs 22 Mins 4 Secs
    Avg. Time Online: 11 Mins 37 Secs
    Rep Power
    21
    Popeye, if you have a car, use it as much as possible, you'll love the truck even more that way. I drive the Civic for long commutes, wife drives the truck in town, but I am so very happy to have a tow rig when it comes time to pull a trailer or do anything a car can't dream of.

    And for the 2,800 KG limit issue, you know its only good because you don't need to up the GVWR on your truck, but you still need stickers right?

  13. #13
    Join Date
    Oct 2002
    Location
    Pefferlaw, Ont
    Posts
    417
    My Mood
    Drunk
    Time Online: 6 Days 15 Hrs 10 Mins 27 Secs
    Avg. Time Online: 32 Secs
    Rep Power
    16
    Yep, the truck is a tow rig period, nothing more.

    You mentioned Stickers? as in?

  14. #14
    Join Date
    Jun 2002
    Location
    Hockley Valley, ON
    Posts
    5,112
    Time Online: 4 Mths 2 Wks 6 Days 22 Hrs 22 Mins 4 Secs
    Avg. Time Online: 11 Mins 37 Secs
    Rep Power
    21
    Annual inspection stickers (yellow stickers). You need to safety the truck and trailer to be legit. I assumed thats why you wanted to keep it under the 2,800 KG limit.

  15. #15
    Stickybongsmoking's Avatar
    Stickybongsmoking is offline Yes, this is gawd damn muthafockling CTD NUT.
    Join Date
    Mar 2009
    Location
    Caistor Centre - Cultural Hub of the universe
    Posts
    4,933
    My Mood
    Buzzed
    Time Online: 10 Mths 3 Wks 5 Days 42 Mins 45 Secs
    Avg. Time Online: 26 Mins 53 Secs
    Rep Power
    28
    Asela,

    Those hand calculated numbers are pretty darn good for that truck. You have nothing to complain about there.

    And MUD DAWG is correct about the annual safety inspection requirements. If the trailer is under 2800 KG weight on the ground, it will NOT be added to the registered gross weight of the truck. However, ANY combination of tow and towed vehicles that exceeds 4500 KG combined, are subject to annual safety inspections UNLESS it is registered as an RV.
    A Member of:
    New Frontier 4x4 Club
    OF4WD 4928 & 6687


    1980 CJ Juggy
    2004 GC 4.7 HO Overland

    "Simple, yet functional....like a Sledgehammer"

  16. #16
    Join Date
    Oct 2002
    Location
    Pefferlaw, Ont
    Posts
    417
    My Mood
    Drunk
    Time Online: 6 Days 15 Hrs 10 Mins 27 Secs
    Avg. Time Online: 32 Secs
    Rep Power
    16
    Thanks Cheyne i did not know the annual inspection/sticker part of it. Where can i get that done?

  17. #17
    Stickybongsmoking's Avatar
    Stickybongsmoking is offline Yes, this is gawd damn muthafockling CTD NUT.
    Join Date
    Mar 2009
    Location
    Caistor Centre - Cultural Hub of the universe
    Posts
    4,933
    My Mood
    Buzzed
    Time Online: 10 Mths 3 Wks 5 Days 42 Mins 45 Secs
    Avg. Time Online: 26 Mins 53 Secs
    Rep Power
    28
    Many automotive shops are capable of performing the 4500 KG+ safety inspections. You will just have to inquire. Or, don't bother with it.....but you didn't hear that from me.[wink]

  18. #18
    Join Date
    Aug 2008
    Location
    Keswick, On
    Posts
    67
    Time Online: 3 Days 6 Hrs 55 Secs
    Avg. Time Online: 16 Secs
    Rep Power
    10
    My 97 Yukon GT, 2 door, 5.7 vortec, 4L60E tranny averages between 6-7 km/L that's mostly highway kms too! I think your mileage sound great to me!

    It's pretty sad that my 9000lb diesel pickup gets better mileage than my DD! Lol

Posting Permissions

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