Quote:
Originally Posted by timgco
On a less  Sarcastic/ joking around note, (see prvious post with  in it) if you are running around on stock tires that are inflated to the correct specs, and are only getting 9mpg, there is something wrong with your truck.
Out of 4 H2's that I have owned, I have never turned 9mpg , and that is at altitudes in Denver to Vail. I have run heavier than stock rims, 37" tires, a bunch of gear, winch, and full roofrack with gear, and still never 9mpg. Altitude, having your foot in it all the time going up into the mountains and wheelin in 4lo...never 9mpg.
I get an avg. of 13.5 mpg with my foot into the gas pretty hard, speeds avg on the highway around 80ish. And pleanty of stop/go traffic.
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Hey lookup,
What Tim said is what i was getting at also, i wasn't trying to be lippy, etc.
9 is unrealistically low for H2 mileage. Without lifts/mods/mud tires, i can't imagine how i'd even get 9 without driving at top speed up hill all day. I think the fuel cutoff is at 92mph, and i don't think mileage would be as low as 9 at 92. So a tuneup and general check-up might be in order. Sometimes something little can be a real mileage-killer. And beyond that just lighter acceleration and more coasting to stops can go a long ways it seems.
And based on personal experience with similar trucks (pickups, other SUVs), none of them (unless far smaller, a yukon is only a little smaller) will get 50% better mileage than an H2. Just marginally better (or marginally worse - an H2 is hardly the worst mileage thing on the road) mileage. The H2s mileage is fairly well similar to any non-diesel 3/4 ton pickup or large SUV with a big engine.
good luck