Q:
Why does diesel fuel cost more than gasoline?
Diesel fuel used to cost less than the more highly refined gasoline. Is there a real reason for this, or is it price gouging?
A:
The main reason is rising global demand, but new environmental restrictions and higher federal taxes also are factors.
Historically, the price of diesel fuel at the pump actually has been higher than that of regular gasoline more often than it has been lower, as can be seen in this chart, which is based on weekly statistics from the federal Energy Information Administration.