One reason is taxes. >The United States federal excise tax on gasoline is 18.4 cents per gallon and 24.4 cents per gallon for diesel fuel. - Wikipedia In most(

One reason is taxes. >The United States federal excise tax on gasoline is 18.4 cents per gallon and 24.4 cents per gallon for diesel fuel. - Wikipedia In most(?) European countries diesel fuel has a lower tax.