Derived from petroleum, diesel is different from petrol in its composition. Diesel also contains more energy than petrol. Is more efficient because it contains 10% more energy per gallon than gasoline. Ppm is the measure of sulfur in the diesel, with ppm standing for “parts per million”. Most diesel engines are sensitive to sulfur, which is why this measurement is important.
10ppm: a low measure of sulfur.
50ppm: this diesel has a higher measure of sulfur than 10ppm. It is more lubricated than 10 ppm.
500 ppm: This fuel, commonly referred to as low-sulfur diesel fuel, was introduced to facilitate sulfate particulate emission reductions.
5000 ppm: A heavy distillate fuel, or a blend of distillate and residual oil, for low- and medium-speed diesel engines in applications involving predominantly constant speed and load.ESPO
BLCO
WTI
Heavy and Light