Diesel - simple terms

Diesel 

          Diesel is a fuel that composed of 75% of saturated hydrocarbons and 25% of aromatic hydrocarbons which has its chemical formula as C12H23. This is also a fuel that extracted from crude oil and obtained from a natural resource called petroleum.

As we all know that  this diesel is used for heavy diesel engines which is used to carry heavy load of goods etc., for example we can say truck, lorry and bus etc.,