Non-road diesel fuel
The rail, open pit mining, and thermoelectric power generation industries rely on a special type of non-road diesel fuel, or TRM (thermoelectric rail mining). The oil used at a few thermoelectric plants is the same that fuels large machinery used in some open pit mining activities, as well as in locomotives and railway machines used to transport cargo and passengers.
The characteristics that differentiate it from road diesel include the concentration of a maximum of 1800 milligrams of the sulfur element per kilogram of fuel, equivalent to 0.18% of this element in diesel. This diesel fuel contains biodiesel at the ratio determined by the current legislation.