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Go Back   Hummer Forums by Elcova > Hummer H2 Discussion Forums > Technical Discussion and Customizing your H2

 
 
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Old 10-14-2010, 11:33 PM
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MVR 155 MVR 155 is offline
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Default Re: 2009 H2 gas mileage improvement?

I have a hard time believing you were getting 13-14 mpg's with your previous rig (unless that was all highway).... were those real numbers or is that what the DIC was reading? Coming out of a 2006 to a 2008 I can say that we get a solid .5-1mpg better with our 2008 around town, have not driven any real highway trips to speak of but on a tank with a good amount of highway driving I did see nearly 13mpg's. There is no doubt in my mind that the 2008 with the 6 speed will do considerably better on a road trip in terms of mileage. The best I ever did with the 2006 was a bit better than 14mpgs on my way to Florida in it last year (the rest of the fill ups netted anywhere from high 12's to just shy of 14) and I was being very concious of my driving style trying to get the best MPG's. I honestly feel I could get a solid 14-15 with the 2008 on the road based on what I have seen from the limited amount we have driven it.

One last question.... since your 2009 is Flex fuel are you running regular unleaded or E85? If you are running E85 then that is where your mileage is going.... E85 nets less mileage than regular unleaded fuel.
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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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