 Diesel is generally simpler to refine from petroleum than gasoline, and contains hydrocarbons having a boiling point in the range of 180–360 °C (360–680°F).The price of diesel traditionally rises during colder months as demand for heating oil rises, which is refined in much the same way.Because of recent changes in fuel quality regulations, additional refining is required to remove sulfur, which contributes to a sometimes higher cost.