Diesel fuel is heavily subsidized by the Indian government.
Do you want the US Fedgov to create more Baraqqi/Bernanke/Geithner minibucks to do the same?
Diesel fuel SHOULD use very little refining; however, the central socialist govenment has made diesel more expensive than refined gasoline.
The government designs your cars, your car seats, your light bulbs and you damned toilet tank!