MPG differences between H3/Alpha?

[Lezam]

Originally Posted by mkaresh

Yes, it can. Fuel economy sometimes improves with a torquier engine because it doesn't have to work as hard. I wouldn't be surprised if the V8 got better fuel economy for some people.

The big problem with buying the V8 is that GM currently only offers it in fully loaded Alpha trim. So, unless you wanted all the Alpha standard equipment anyway, there's a large price difference.

My site has a fairly sophisticated "real world" Fuel Economy Survey. Results for the H3 here:

Hummer H3 fuel economy

None for the Alpha yet. Any Alpha owners here? If so, I hope you'll consider signing up and participating.

I was going to go for the lux package anyways, so the difference is about 4k between that and the alpha.

[SpeedNut]

The other problem is that they changed the calculation formula for the estimated MPG I think starting this model year ('08) which adjusts almost every vehicle down. If I find the details of the change, I'll post it.

Update: Just found it on Edmunds:

Edmunds.com: EPA Overhauls Fuel Economy Estimates for 2008

[Spuds]

I have been thinking about this issue as well.

I'd almost bet that the final-drive gearing combination of the V-8 and 35" tires would give the best highway mileage, and comparable city mileage to the other drivetrain/tire combinations.

[Lezam]

So you think bigger wheels will get better mileage?

[3Hummer]

i think he was being sarcastic