Gasoil forms part of a family of heavy oils. It is created by means of a process of fractional distillation of crude oil petroleum. It is primarily used as a diesel fuel in heating and automotive applications.
Diesel D2 Gasoil is a specific distillate fraction of fuel oil that is used in diesel engines invented by German engineer Rudolf Diesel, and perfected by Charles F. Kettering. Diesel D2 Gasoil, including 7.3L and the 6.0L, are also used to lubricate engines and to fire the injectors.
To ensure that clients are provided with suitable D2 products, there are ISO industry standards that suppliers must adhere to. GOST 305-82 is a cleaner D2 distillate with lower sulphur content. GOST is a variant of Gasoil and D2 that is in line with ISO industry standards with a lower sulphur content maximum of 0.05%. This version of D2 has helped with reducing pollution in many cities, relative to older, traditional Gasoils.
Overwhelmingly the term Diesel refers to fuel that is processed from petroleum, but increasingly, alternatives such as biofuel that are not derived from petroleum are being developed — its brand name being "B20".
Unfortunately, the cost of production of B20 is still very high and therefore it, as a rule, is used only as the additive which volume in mix with oil fuel does not usually exceed 20%. Such ratio of biodiesel content in B20 has gained its greatest distribution in Europe.