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Hummer Gas Mileage

41 messages, Last post on Feb 05, 2009 at 11:19 AM
You are in the Hummer Forum. Your Hosts are steve_ & tidester
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Replying to: vla1523 (Jun 18, 2007 7:52 pm) 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.
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Replying to: mac24 (Jun 18, 2007 8:34 pm)
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Replying to: vla1523 (Jun 19, 2007 11:56 am)
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Replying to: detroitlions (Jun 24, 2007 6:56 pm) Kind of hard to answer without knowing what your current gas mileage actually is. Any reason this is posted in 'H2 Wheels and Tires'?
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Replying to: mac24 (Jun 25, 2007 5:14 am)
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Replying to: steve_ (Jun 25, 2007 7:14 am)
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Replying to: mac24 (Jun 25, 2007 7:56 am)
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Replying to: steve_ (Jun 25, 2007 8:21 am) http://www.myfoxdfw.com/myfox/pages/Home/Detail;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.
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Replying to: mac24 (Mar 08, 2007 7:26 pm)
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Replying to: suncoastmike (Jul 11, 2007 4:01 pm) 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. |
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