I also have an drz-400 with knobbies for suck occasions I can't get through via the truck.
You complain at $4 a gallon? That's 40% cheaper than standard EU prices. That has nothing to do with the relative price of the commodity and everything to do with the untouchable status of fuel tax in the US and Canada. If the government is too timid to tax gas to encourage people to buy more fuel-efficient cars ( I'm talking 40-50 MPG, not 25-30) then there's no hope that the US and Canada will bring down their CO2, greenhouse emissions.
US is how many square miles?
europe is small, you don't have to drive as far. Not the same scenario.