Diesel fuel(diesel) is a petroleum product that results from the distillation of crude oil.Mixing and hydrotreated virgin fractions in certain proportions (kompaundirvanie) defines a particular brand of diesel fuel.Usually made from a mixture of straight-diesel direct and primary distillation and light gas oil produced by the catalytic cracking unit.According to the Standard, the distillation of crude oil may be obtained three brands of diesel fuel: A (summer diesel fuel) - for temperatures above 0 ° C, W (winter diesel) for temperatures up to -20-30 ° C, A (arctic) for very low temperatures, down to -50 ° C.