MPG Revolution H2 Hummer's Hydrogen Fuel Efficiency Breakthrough

I spotted this Hummer H2 at the SEMA show in Las Vegas a while back. It claims to get 100 mpg with bolt on technology. Best Answer. 10 to 12 mpg. Hummer H2s have horrible fuel mileage. 6 people think this is helpful. Worst case urban driving is said to be in the range of 8 to 14 U.S. mpg (21 to 25 L/100 km). Although General Motors does not provide official H2 fuel economy ... A hummer getting the same or worse mpg as a 747 is the biggest load of bullsiht I have ever heard! A quick google search and I found a quote ... Hummer H2 MPG · 2007 · 10.3 Avg MPG · 6 Vehicles · 116 Fuel-ups · 25,534 Miles Tracked; View All 2007 Hummer H2s. "This truck is really a fun vehicle to have! It is very reliable, versatile, safe, maneuverable, and the only downside I have is the fuel economy. It has caused ... Fuel economy not bad at all, its a terrible point that poor people focus on...People spend $200 a month on coffee no big deal, $500 a month on booze no big deal. simple answer to the gas mileage question is the H2 is fulltime 4X4. That kills the gas mileage. The Yukons and Avalanches which share the same footprint have a ... That is awfully low- I average 18 around town, and got almost 24 mpg highway on the Thanksgiving weekend. And no, you should not have bought a ... Hummer H2 MPG (Fuel Consumption) & Emissions data for Hummer H2 cars . Includes HUMMER H3 for HUMMER H3.