I have the same issue...
So I decided to switch out the dino fuel engine for a diesel and use
bio-diesel/veg oil instead.
An investment of $8,000 to $10,000 but one I think is worth it-

Chris

Geza Polony wrote:
> This is a conflict I have every time I turn the ignition key in my van. I
> and my family love this van unlike any other car we've had, yet it goes
> against our principles to drive it. Put simply, 19 mpg is not justified in
> this era.
>
> Sure, it feels good to drive. But aren't all the Hummer drivers saying the
> same thing?
>
> The only long-term solution I can see is to promote the new plug-in hybrids
> that get 100 mpg, and take these old beasts out only for camping.
>
>
>