1. Conventional Diesel

This type is directly derived from crude oil distillation and contains relatively high levels of sulfur. Due to its high emissions, its use has been limited in many countries.

2. Low Sulfur Diesel (LSD)

With a sulfur content below 500 ppm, this type is more environmentally friendly than conventional diesel. Although it was widely used in the past, it is now largely replaced by cleaner alternatives.

3. Ultra-Low Sulfur Diesel (ULSD)

Containing less than 15 ppm of sulfur, ULSD is the current global standard for on-road diesel vehicles. It significantly reduces emissions and supports the use of advanced emission control technologies such as particulate filters.

4. Biodiesel

A renewable biofuel produced from natural sources like vegetable oils or animal fats. Biodiesel can be used on its own or blended with fossil diesel. Its main advantage is the reduction of greenhouse gas emissions and enhanced environmental sustainability.

5. Synthetic Diesel

Produced through processes like Fischer-Tropsch synthesis using non-petroleum sources such as natural gas, coal, or biomass. This type of diesel is ultra-clean, containing virtually no sulfur or aromatic compounds.