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Hummer Gas Mileage

phisherphisher Posts: 175
edited July 10 in HUMMER
I was wondering what type of gas milage people are getting? I know that the hummer sucks down the gas but neither this site or consumer reports list a range for the gas mileage for city/hwy.


  • mac24mac24 Posts: 3,910
    Do you have any particular model of Hummer in mind?
  • phisherphisher Posts: 175
    I was thinking the H1 or H2. I'm guessing they are in the same ball park. The H3 has listed number which give people a rough number.
  • mac24mac24 Posts: 3,910
    Surprisingly the H1, which is diesel, gets a better return than the H2. 12-13mpg compared to 8-10mpg.
  • phisherphisher Posts: 175
    on the H2 is the 8-10 city/highway or just an average in a normal mix of driving? Also where did you get these numbers as all reviews I've seen don't list anything for fuel economy.
  • mac24mac24 Posts: 3,910
    H2 figures come from half a dozen personal acquaintances, though I can't vouch for the accuracy of their calculations. However, they do all agree. None of the H2s are later than '05, and it's it's possible that later models may do better. Cruising at 55mph can return 12-13mpg but pushing above that drops it down. Expect 10mpg or less around town and offroad it can drop to low (very low) single figures.

    H1 figures are mine, filler neck to filler neck, speedo GPS verified
  • vla1523vla1523 Posts: 2

    I have questions about h1 gas mileage just like phisher. You said an h1 can get about 12-13 mpg. I have heard around these numbers from most people. I have loved hummers ever since the age of 3-4. This year is my senior year and my parents have offered to buy me a used h1 (year 2000 and up) for graduation. My dad has talked to a few hummer owners and they had everything bad to say about them. We even test drove one of his customers 2002 h1 soft top. The experience was wonderful, but the vehicle had some problems during the two days we drove it. The first problem was the dome light kept on flashing and would take up to 15 minutes to stop flashing parked or in drive. The second problem was the rattles and sqeauks. Don't get me wrong I know a h1 will rattle and shake, but I mean these rattles sounded like the door was going to fall off. The third problem we had was the check engine light came on. We were not sure if it had to do with the hood latch to be somewhat up, because when we pushed it back into place the light went out...? It sounds like you have a lot of info on h1's or you may even own one. If you could give me a breakdown of the h1, the pros and cons, maybe even bust some negative myths such as 7 mpg...? That would be more helpful than you would ever know. I want to research this vehicle before I ask for a used one for graduation. I hope the h1 we test drove was just a fluke. I hope you get back to me soon and thank you...
  • mac24mac24 Posts: 3,910
    It's very hard to diagnose specific noises, rattles and electrical problems over the internet. However, I can tell you that it's no more normal for an H1 to have bad rattles and shakes, a flashing dome light, or an illuminated CEL than it is for any other vehicle.

    I'll hazard a guess that there's a bad electrical connection causing the dome light to flicker. The shaking is most likely caused by improperly balanced wheels. Mine is completely smooth at all speeds, but it wasn't until I took care of the balancing that it became that way. As for the CEL, you need to have it checked for codes, just like any other modern OBDII equipped car. You can have it done free at Autozone.

    As for mpg (don't forget it's diesel), I'll get 12-13mpg driving briskly in town, easily keeping up with traffic but anticipating stop lights so that I keep rolling wherever possible, and maxing out at 65-70mph. However, I've recently been doing several thousand miles of 100 mile round trips, 1/3 town 2/3 highway. By driving as I normally do, but restricting my highway speed to 55mph I consistently get 14.5 mpg. As well as saving fuel, it's quieter at 55, and more relaxing too. Downside is slightly longer journey times.

    An H1 is not the cheapest or most practical vehicle (unless you live in the wilderness), but it really is FUN!!! It's hard to justify for any other reason than you just want one, but that applies to many other vehicles from Corvettes to Jeeps.

    If you have any specific questions I'll be happy to answer them if I can.
  • vla1523vla1523 Posts: 2
    Thank you very much for all your info. If another question comes up i'll ask you. Thanks again you have been very helpful!
  • we really love our hummer is there anything i can do as far as modifing/adding anthing to get better gas mileage. or does it just require a tune-up?
  • mac24mac24 Posts: 3,910
    ...anthing to get better gas mileage. or does it just require a tune-up?

    Kind of hard to answer without knowing what your current gas mileage actually is. ;)

    Any reason this is posted in 'H2 Wheels and Tires'?
  • steverstever YooperlandPosts: 39,993
    We've moved the post over to the generic Hummer mpg discussion. :shades:

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  • mac24mac24 Posts: 3,910
    It's like magic! :surprise:
  • steverstever YooperlandPosts: 39,993
    Magic would be increasing the mileage to 35 mpg. :shades:

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  • Steve, I really didn't want to post again on the main topic(and hog the discussion) and I didn't join digg to give you some hits. But the diesel keeps rearing its head and following is the ed wallace review of the new jeep v6 diesel.;jsessionid=4E0CB8EBBF43F9CD95577EFFF9D50F3A?contentId=3632590&version=2&locale=EN-US&layoutCode=VSTY&pageId=1.1.1&sflg=1

    A recent test of of our '06 H3 auto w/adventure pkg with 13k miles on the odometer, 10% ethanol, a maintenace dose of red line fuel additive, 42psi in the 33's, no noticable wind, a/c running, 500lbs total passengers and cargo, and cruise at 68mph yielded 19.5 mpg. Off of cruise and not keeping up with the front runners and yet not bringing up the rear lowered mpg by 2.
  • I have an '05 H2 and I get 12 mpg. You are getting 8-10?
  • mac24mac24 Posts: 3,910
    No, I have an H1 and I'm currently getting 14.5 mpg (diesel). :)

    See post #6 for what I said about the H2.
    Your 12mpg is pretty good. You might do a little better with a lighter right foot, and you'll do a lot worse towing or off-roading.
  • Recent north south trip strong head wind even stronger tail wind. 8k miles on that expensive thick 5w30, original still very clean air filter, tires at 38psi with 12/32 of tread remaining, keeping up with the flow, a/c running - 17mpg.
  • Kirstie_HKirstie_H Posts: 10,824
    A reporter would like to talk to mothers who use a large SUV to transport children but are now considering a smaller, more fuel-efficient vehicle as a result of high gas prices. Please respond to with your daytime contact information along with your current vehicle and the vehicle/s you are considering no later than Wednesday, June 11th.


    Jonathan Wahl
    Corporate Communications
    Edmunds Inc.

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    Share your vehicle reviews

  • thegraduatethegraduate Posts: 9,731
    The reason you don't see EPA numbers listed for the H2 is that the weight of the vehicle is so high that they can get it excluded from the EPA rating system. Many heavy-duty full size trucks qualify for this exemption as well. I think it has to be over 3 tons.
  • just another reason to put a bullet into GM

    it's exemptions and tax breaks for cars like the Hummer that clearly show a lack of vision and undue poor influence in Washington. Of course no one in the current administration really cares about curbing our use of oil.
This discussion has been closed.