Man ,
I think my old beat up 1977 Dodge Ramcharger with a 400, 4:10's and full time 4WD got better than that H2 !!:D
Maybe it had a couple of plug wires off

I'm on my 3rd Hummer (now called H1). The current is a '97 Turbo Diesel w/ a 2in. lift and 38 Swampers on the front and PJ Dirt Gripz on the rear. I avg. about 15 mpg and regularly tow my 30 Cobra w/ no problems. I just picked up a new '02 PSD Excursion on Friday and love it. Can't wait to tow w/ it and leave the Hummer for offroading.

Isn't the H2 just a Tahoe with the Hummer body? Could wind resistance make the difference?

The H2 is much more than a Tahoe with a different body. H2 has 8 lug axles, full time 4wd, 6.0 Gas V-8. Rear suspension is unique to the H2 using oversize air bags. This feature is cool. Hook up the trailer and the truck levels itself out. It also has trailer brakes prewired so no more aftermarket brake modules.
What some of you guys are forgetting is this thing weighs 3 tons! I just talked to a friend who has one. He towed a 30ft enclosed travel trailer about 15 miles. 4 of that was street the reat highway. He said the average was 9mpg. The trailer weighing 11,500 (just weighed last weekend) I think anything from 8-11 would be expected. Dont look for the Dmax to be in the hummer H2. The Allison trans wont fit.

Pulling a 36' Spectre is exceeding the tow capacity of the H2 by quite a bit. That alone is the reason for the 2mpg. That 6.0 is working way too hard. My Excursion v-10 pulls my 35 Motion very well and will get as low as 8-9 mpg in tow. I think the H2 is a hot looking SUV! If the tow capacity were higher I would be in line for a new one.

The aero's on the H2 must be really bad. I have a 02 Denali with the SAME powertrain package (6.0 4x4) that gets an honest 14 mpg city, and 16-17 highway if you drive normal (which i don't, so this is speculation, I get 16 at an average of 75mph)

I keep hearing that GM will put d-max's in the yukon/tahoe/H2/everything else in 2004. Not by coincidence the same time Frod quits making the X with a P-stroke.
Don't know if it's true, just a rumor.

sorry, Ford, not Frod. he he Must be a Freudian type error there.

oh yeah....two more posts until.....

500!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\
Yeah for me.