15 mpg for a normal road trip

[Badace]

11.5-12 here. Must be doing something wrong.

[Intercooled]

Originally Posted by Badace

11.5-12 here. Must be doing something wrong.

I'm the same no matter what I do. Never noticed ethanol free fuel around here though.

[TGCOFTN]

Originally Posted by Intercooled

I'm the same no matter what I do. Never noticed ethanol free fuel around here though.

Go to www.pure-gas.org and you can find gas stations that have 100% pure gasoline, NO ETHANOL. They are fare and few inbetween, but where I live, I am able to hit them in different parts of town. So many people are NOT getting good gas mileage, and the truth is, I dont care what kind of vehicle you have, if the gas has ethanol in it........thats where your mile per gallons are going. Get some Ethanol Free Premium Gas, run synthetic fluids, and bump up your tire pressure to 45 pounds.

I am sticking to my figures weither anyone wants to believe me, my 2007, the highest is 19mpg, and my 2008 the highest is 24mpg. My Hummers are both 100% stock ( no oversized tires, etc. )

The key thing is, keep it at 60mph ( most people dont drive 60mph ) and another big factor is depending on the area you live in. If you live where its a lot of hills, your tranny will most likely downshift quit often, which will raise your rpms, and use more fuel. If your on some pretty smooth highways where you can keep your engine at around 1,400rpms you would be amazed at how much better fuel economy you can get ( and I DONT go by the mile per gallon meter on the dash ) I hand calculate my miles per gallon.

The truth is.............I really dont care what kinda gas mileage it gets, cause I love them, and they are the best vehicles I have ever owned. But I have tested both of them to see what is the absolute BEST mpg I can get out of them.

[vetteSUT]

Some of you guys have the newer models as well with the 6 speed. That might make a difference on the highway at cruising speed.

[VegasGuy]

Road trip report: The wife and I just returned from our three week vacation covering 11 states and over the Rockies twice. We put about 4500 miles on the H2. I hit the average mpg reset in my driveway upon departure. I took two lane roads when time allowed and mostly drove 65 mph. Upon return to Vegas, my average mileage for the entire trip was 14.8. Pretty good for a stock H2, IMO. The H2 performed flawlessly.

[surf twang]

We just drove our new-to-us 2006 H2 from San Jose, CA to Albuquerque, NM. On the way to ABQ I did not reset the average mpg and got 13.3 mpg for the entire trip. At one point we were at 13.8.

On the way back I reset average mpg every time I filled the tank. On the first two legs through NM and AZ at mostly 75 mph we got 14.4 and 14.3 mpg respectively. The third leg from Kingman, AZ to Newberry Springs, CA (near Barstow) we got 12.7. The last time we filled up before arriving home we got 13.8. We had pretty strong head winds through most of California. I am pleased with the results. I'm sure the hundreds of big pickups and SUVs that passed us going 85-90 mph weren't getting any better mileage.

Over 70% of our trip was in 100+ degree weather (hitting a peak of 110 in AZ) and engine coolant never got more than a little past 200 and that was after 3 hours of driving in 105-110 degree heat.

[VegasGuy]

My gut feeling is city driving, strong headwinds and driving over 65 mph are the biggest factors in average mpg in a H2. We had some strong headwinds the first 1/3 of the trip, especially in the afternoon. There were only a couple of legs where we had a tailwind. It made a big difference when we did. We spent close to a week in one city with a lot of hills and that also was a big factor in bringing our mileage down.

[Z06RB]

Originally Posted by Badace

11.5-12 here. Must be doing something wrong.

Same here.

[HummerJim]

Just got back from Dillon, CO and a 1400 mile trip. Punched the mpg to 0 when I left and it now reads 11.8 mpg.