Unleash the Thrilling MPG of the H2 Hummer Fuel Efficiency Redefined

Fuel economy ; Car and Driver · 10 mpg‑US (24 L/100 km; 12 mpg‑imp) / 4.3 km/l ; About.com · 9 mpg‑US (26 L/100 km; 11 mpg‑imp) / 3.8 km/l ; Edmunds · 9.2 mpg‑US (26 ... There's a faux central tire inflation system, and the gas mileage is unimpressive at just 12 mpg. Parking the H2 is a challenge due to its ... In our extensive driving of previous H2s, TheCarConnection.com's editors observed 10-12 mpg in highway driving. Likewise, the HUMMER H2 has not ... Its large size and powerful engine translated to abysmal fuel economy, averaging a mere 10 mpg in the city and 13 mpg on the highway. This ... When towing it dropped to a regular 7 - 9 mpg. Not the best for all around mpg. General Motors is not required to provide official H2 fuel economy ratings due ... Daaam my 2003 Hummer H2, had better Mpg 12Mpg to be exact! Buy Innovative Performance Chip/Power Programmer for Hummer H2 - Improve Your Fuel Mileage & Gain More MPG, Increase Horsepower & Torque! The Hummer H2 gets roughly 10 to 13 miles per gallon, and 32 gallon fill-ups running into the mid-$60s have been cause for Hummer's concern. Fuel economy is nearly nonexistent. At 12 mpg for combined driving, there's no point to even mention it. Advertisement. Then there's the ... 2005 Hummer H2 Specs & Performance ; Performance.  · Top Speed: 99 mph. 0-62 mph: 10.2 seconds ; Gasoline Engine.  · Capacity: 6 Liter · Layout: V8.