<font color="blue"> If gas is harder to refine that Diesel, why is it that in our area diesel costs more than gas? </font>
The same reason it's higher most places, relative supply and demand, driven to some degree by these points:
1. European refineries have excess gasoline since their diesel demand is much higher by percent of refining capacity than ours. The excess gets shipped here, which helps to hold down gas prices on this side of the pond (I know, I know, they don't seem held down).
2. Diesel competes with home heating oil for refinery capacity. It's winter, and every winter diesel goes up.
3. A large percentage of gasoline consumption is by individuals, many of whom can modify their behavior to burn less off the stuff (carpool, fewer trips to the store, buy a smaller car, etc.), while most diesel consumption is by businesses who have no easy way to reduce their consumption. Trucks still have to make deliveries and heavy equipment still has to move dirt, farmers gotta farm, etc. In other words, price rises for gasoline have a greater tendency to reduce demand than do prices rises for diesel.
4. And of course, my new diesel truck. /forums/images/graemlins/crazy.gif