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10-24-2007, 06:31 PM
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Hummer Professional
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Join Date: Aug 2007
Location: Bartlett, Illinois
Posts: 486
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Re: Gas Mileage after Programmer
We get an honest 12MPG with ours ( bounces between 11.9-12.2) with regular driving, most streets around here are 30-45MPH with a moderate amount of traffic lights. I do drive pretty easy, I figure its a big pig of a truck from a performance standpoint so there is really no need to be mashing the gas all of the time. I have yet to get any really decent mileage on the highway though, going 70-80MPH we have a really hard time seeing better than high 13's maybe 14, Overall Im pretty pleased with the mileage it gets.... not really much worse than any other big V8 SUV
I have a friend who also has an H2.... he has a set of 26" wheels and drives pretty aggresive and he is down in the 9-10 MPG range so depending on your driving style it can make a huge difference.
__________________
2008 H2 SUV Luxury: Solar Flare ext/Black int
SOLD 2006 H2 SUV Luxury: Pewter ext/Black int.
2002 Corvette Z06 Blue/Ebony (light mods)
1/4 mile: 11.661@118.86
2013 Audi S4
2002 Yamaha YZF R1 Blue/White
1/4 mile: 10.51@136
2006 Sea-Doo RXP (70.6mph GPS)
2005 Sea-Doo RXT
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10-25-2007, 07:51 PM
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Hummer Veteran
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Join Date: Oct 2007
Location: Rowland Heights, California
Posts: 227
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Re: Gas Mileage after Programmer
does anyone have the max energy programmer from Hypertech ???? Can someone who has experience with this programmer chime in ...
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11-09-2007, 02:34 AM
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Hummer Veteran
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Join Date: Oct 2007
Posts: 83
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Re: Gas Mileage after Programmer
I have it... Before I installed I was getting roughly 12MPG give or take .2... After install with the premium setting I'm getting about 10.9 (according to the indicator) I have not gone through a tank yet to figure out true mileage yet.
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11-09-2007, 08:39 AM
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Hummer Veteran
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Join Date: Aug 2007
Posts: 139
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Re: Gas Mileage after Programmer
i've got the Diablo Predator and before it was running 10.2 and after the performance upgrade I went all the way up to 11.3-.4.
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11-10-2007, 03:15 AM
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Hummer Veteran
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Join Date: Oct 2007
Location: Rowland Heights, California
Posts: 227
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Re: Gas Mileage after Programmer
Quote:
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Originally Posted by TheBoyNextDoor
i've got the Diablo Predator and before it was running 10.2 and after the performance upgrade I went all the way up to 11.3-.4.
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really got any proof ??? I dont think its possible really unless you are running really really lean ... |
11-10-2007, 06:59 AM
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Hummer Authority
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Join Date: Nov 2004
Location: Little Rock, Arkansas
Posts: 1,784
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Re: Gas Mileage after Programmer
RippSpeed is correct on the MPG in my mind. Everyone knows what happens when your are way way to lean. I do not care what you built the engine from it will end up damaged if you do not know what your doing in the tuning end of the deal. Lean has to be offset with something such as higher octane, greater cooling, or several other options. The cheapest is driving with a very light foot and going really slow if that lean.
TAZ
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05 H2 SUV cus. paint, Magnuson SC 6/12lb boost, cowl hood scoop, 12" dash touchscreen, GM elec. fans, HPTuners.com tuning soft., Dynatech headers dual catback exhaust Jet Hot chrome front to back Flowmaster Super 40's, Diamo 8 Karat rims & 325X60-20" Toyo, 4 OEM Captain seats Katzkins leather, rear console computer inside running all AV/NAV etc., Infinity component system 3 amps Tsunami Caps, rear flip down 12" monitor, headrest monitors, overhead console boost, fuel pressure, & A/F ratio gauges
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11-10-2007, 07:49 AM
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Hummer Veteran
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Join Date: Oct 2007
Location: Rowland Heights, California
Posts: 227
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Re: Gas Mileage after Programmer
The Predator is a great tuner if you can adjust +/- timing maps, fuel injection percentages, etc... I wish my hypertech could do that but then why would I need something like that... I have this problem with messing with cars alot... I cant leave $#!T alone... This Hummer I'm leaving pretty much stock... p.s. I bought this hummer for my wifey... I really want another hummer with a diesel in it... So I'm waiting to get mine when they offer a diesel with a alison 6spd...
Last edited by RippSpeed : 11-10-2007 at 11:22 AM.
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11-10-2007, 11:08 AM
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Hummer Veteran
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Join Date: Aug 2007
Posts: 139
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Re: Gas Mileage after Programmer
Quote:
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Originally Posted by RippSpeed
really got any proof ??? I dont think its possible really unless you are running really really lean ...
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All I did was upload the performance tune. |
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