Krsqk: I partly agree with you about not giving govt more tax dollars. So I'd use the fuel tax exclusively to fund the research, development, and early adoption of conservation measures and alternative energy systems. Or else I'd use it to offset lowering of other taxes.
At present, federal gasoline taxes are put into a "transportation trust fund" which is supposed to keep the highways and bridges in pristine shape, but instead is used to build new highways (often unnecessary ones in the districts of powerful legislators), and to hide the size of the budget deficit. Those things wouldn't happen, if I were in charge.
