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Horrible gas mileage any reason?

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Old Jul 11, 2007 | 09:50 AM
  #31  
Dennis's Avatar
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ORIGINAL: Shannon

Remember....I am the dumb blonde that knows nothing about cars, but I am trying to learn since I am so excited about the new Hummer.....female oh, course....
Oh cool..So flirting will be okay then?....I like dumb blondes[8D]
 
Old Jul 11, 2007 | 10:53 AM
  #32  
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Default RE: Horrible gas mileage any reason?

just went through the first tank last night. calculating from the fill up, I averaged 17.8 mpg keeping it "mostly" under 55mph.....certainly under 65mph.
 
Old Jul 11, 2007 | 10:55 AM
  #33  
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Default RE: Horrible gas mileage any reason?

ORIGINAL: Dennis

ORIGINAL: Shannon

Remember....I am the dumb blonde that knows nothing about cars, but I am trying to learn since I am so excited about the new Hummer.....female oh, course....
Oh cool..So flirting will be okay then?....I like dumb blondes[8D]

< Message edited by Dennis -- 7/11/2007 9:51:36 AM >
OK Now you are just doing it intentionallyto annoy me
 
Old Jul 11, 2007 | 11:16 AM
  #34  
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Default RE: Horrible gas mileage any reason?

ORIGINAL: tmoody

just went through the first tank last night. calculating from the fill up, I averaged 17.8 mpg keeping it "mostly" under 55mph.....certainly under 65mph.
If you search through our bazillions of MPG posts, it looks like MOST people on this forum average between 15 to 18 MPG going between highway and city, regardless if the AC is on and off. On those RARE 75 degree days when you don't need AC and there is NO wind and you are driving 60 on the highway, some of us have gotten 20 to 22, but that is RARE.
 
Old Jul 11, 2007 | 06:33 PM
  #35  
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I'm not doing that great on mine, its mainly city driving and average around 14 mpg. I make sure not to do the jack rabbit starts or hard braking but I guess like everyone says it just needs to break in some more.
 
Old Jul 18, 2007 | 12:18 PM
  #36  
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my h2 was normaly at 11.3-12.5 which was like amazing but after i installed CAI im gettin 15 and on a good day max 17 never more
 
Old Jul 18, 2007 | 02:36 PM
  #37  
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Default RE: Horrible gas mileage any reason?

tire pressure cold at 39 psi really helps!
 
Old Jul 18, 2007 | 06:08 PM
  #38  
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OK, only have two tanks used so far, 1st tank (city/highway 30%/70%) was 15.06 MPG, and the 2nd tank, (100% city) 12.45 MPG.
Hope to improve after installing Cat back system and CAI next week, (if I get the parts)!



[IMG]local://upfiles/2759/96F1753024164E1997DD56C35E4B8F99.jpg[/IMG]
 
Old Jul 18, 2007 | 06:25 PM
  #39  
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You will and it should be broke in at about 6000 to 8000 miles..which will make a little difference too.

And if you change your oil to a synthetic ..
 
Old Jul 19, 2007 | 12:05 AM
  #40  
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Default RE: Horrible gas mileage any reason?

My gas mileage averages at about 19 on the hiway. I keep my factory goodyears at 40psi instead of the 30 that they recommend. That could have something to do with it.
 



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