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06-07-2005, 06:14 PM
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Hummer Veteran
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Join Date: Jun 2005
Location: Long Island NY
Posts: 207
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I just picked up my '05 H2 SUT last week. After burning through the fist tank and filling up again I noticed that it only took 25 gallons. The low fuel light was on and the range said "low". Does the low fuel light actually come on with 7 gallons left?
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2005 H2 SUT Lux *sold*
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06-07-2005, 06:14 PM
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Hummer Veteran
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Join Date: Jun 2005
Location: Long Island NY
Posts: 207
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I just picked up my '05 H2 SUT last week. After burning through the fist tank and filling up again I noticed that it only took 25 gallons. The low fuel light was on and the range said "low". Does the low fuel light actually come on with 7 gallons left?
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2005 H2 SUT Lux *sold*
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06-07-2005, 06:17 PM
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Hummer Guru
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Join Date: Apr 2005
Location: Orlando, FL
Posts: 6,358
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Frank2005:
Does the low fuel light actually come on with 7 gallons left? </div></BLOCKQUOTE>
Well that would only give you a ten mile range wouldn't it 
Just kidding and sorry, don't have the answer for you but couldn't pass it up.
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I don't care about the "Jeep thing"  as long as my mail is on time!!!
Slate Blue H3 Adventure w/sunroof, Monsoon/NAV, DVD and marker lights
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06-07-2005, 06:28 PM
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Hummer Guru
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Join Date: Jan 2005
Location: Oregon
Posts: 4,321
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I noticed mine came on with about 3 left in the tank. 
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If it has tires or testicles, you're going to have trouble with it
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06-07-2005, 06:30 PM
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Join Date: Mar 2005
Location: Detroit
Posts: 87
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Mine comes on with about 3-5 gallons left in the tank.
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06-07-2005, 07:03 PM
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Hummer Messiah
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Join Date: Apr 2003
Location: Virginia Beach
Posts: 37,474
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About 4 here.
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"My reading of history convinces me that most bad government results from too much government."---Thomas Jefferson
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06-07-2005, 07:19 PM
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Hummer Guru
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Join Date: Jan 2004
Posts: 7,060
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My SUT kicks in around 4 gallons left.
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TAIL RATED!
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06-07-2005, 11:57 PM
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Join Date: Nov 2004
Location: On my way to Hummersgonewild!
Posts: 830
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I have a 2005 that, like clockwork, takes 25 gallons to fill every time.
It seems that yes, there's 7 gallons down there in the bottom of the tank at the time the light somes on in the 2005's h2's.
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\"I\'ll worry about the splinter in my eye when you worry about the plank in your\'s\"
2 Pissed off dealer mechanics, Origami frame, Convex UCP, 2 Bent cross members, Dented driveshaft, Broken sway bar mounts, misaligned transmission, exhaust leak, Pl
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06-08-2005, 03:58 AM
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Hummer Veteran
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Join Date: Nov 2004
Location: Morristown, NJ
Posts: 228
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yeah, when my computer tells me I'm critically low...i fill up and get about 26-28 gallons ( depending on how much i stretch it )....
book says 33 gallon tank? right? thats another 20-60 miles? no?
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06-08-2005, 11:46 AM
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Hummer Expert
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Join Date: Nov 2002
Location: North Texas
Posts: 523
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I believe the book says 32 gallon tank capacity. My '03 is similar with about 6 gallons left when the light comes on.
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Jim
2003 H2 Metallic Red (now gone)
2008 H3 Graphite Lux
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06-08-2005, 03:57 PM
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Hummer Veteran
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Join Date: May 2005
Posts: 71
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Well given the fact that 3,4,5 or 6 gallons sounds like a lot, it's only 20 - 50 miles given high end figures. On the low side and towing across country that can be a long walk to a gas station if it did infact come on with just 1 - 2 gallons in the tank.
I've always figured the mileage on all 32 Gallons or 27 gallons used and bump up the MPG consumed accordingly.
Soooo our H2 gets 15.6 MPGC
Denny
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06-08-2005, 04:08 PM
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Hummer Authority
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Join Date: Oct 2004
Location: Houston, TX
Posts: 1,290
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Roughly 6-7 gallons left here, also.
-Pete
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06-08-2005, 04:28 PM
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Hummer Authority
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Join Date: Jan 2004
Location: Home is where the H2 is..
Posts: 1,814
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I've heard that the gas is also used to cool the pump (in a seperate chamber?), and that if the tank runs completely dry, the pump would fail causing expensive repair.
Does it then make sense for the last few gallons to NOT be "usable"?
Of course since I have never run the H2 till it sputtered out of gas, can't tell you if those missing gallons are actually there cooling the pump or not...
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06-08-2005, 04:30 PM
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Hummer Veteran
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Join Date: Nov 2004
Location: Morristown, NJ
Posts: 228
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Denny....thats an interesting point...being that the mileage gauge thinks the tank is low on 25 gallons consumed when really there are 33 total gallons...does that mean the MPG estimated in the computer is inaccurate?
Do the math:
@ 380 Miles on a 32 gallon tank = 11.875 mpg
@ 380 Miles on a 27 gallon tank = 14.074 mpg
could the numbers be wrong? anyone know more?
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06-08-2005, 04:40 PM
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Hummer Guru
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Join Date: Apr 2005
Location: Orlando, FL
Posts: 6,358
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Tully:
Do the math:
@ 380 Miles on a 32 gallon tank = 11.875 mpg
@ 380 Miles on a 27 gallon tank = 14.074 mpg
could the numbers be wrong? anyone know more? </div></BLOCKQUOTE>
I would certainly trust doing the math myself before trusting the computer to tell me.
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I don't care about the "Jeep thing" as long as my mail is on time!!!
Slate Blue H3 Adventure w/sunroof, Monsoon/NAV, DVD and marker lights
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06-08-2005, 05:12 PM
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Hummer Messiah
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Join Date: Apr 2003
Location: Virginia Beach
Posts: 37,474
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by H2Finally:
I've heard that the gas is also used to cool the pump (in a seperate chamber?), and that if the tank runs completely dry, the pump would fail causing expensive repair.
Does it then make sense for the last few gallons to NOT be "usable"?
Of course since I have never run the H2 till it sputtered out of gas, can't tell you if those missing gallons are actually there cooling the pump or not... </div></BLOCKQUOTE>You are correct.
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"My reading of history convinces me that most bad government results from too much government."---Thomas Jefferson
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06-08-2005, 05:16 PM
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Banned
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Join Date: Jan 2003
Posts: 24,247
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Umm. I don't think the truck uses the gas gauge to determine MPG. I would assume it gets MPG by measuring the fuel flow or something.
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