Actually, Diesel is not flammable, it is combustible. The difference is the flash point. Diesel does not flash until 143 degrees Fahrenheit. Anything between 100 and 200 is combustible; less than 100 is flammable. Compare it to "gasoline" which has a flash point of -42 F (I think).
a
class B
Class B
a
Oily flammable fuel is commonly referred to as "kerosene" or "diesel fuel," depending on its specific characteristics and intended use. These fuels are derived from crude oil and are used in various applications, including aviation, heating, and engines. Due to their flammable nature, they must be handled with care to prevent fires and explosions.