Sulfur

Sulfur is found in refined petroleum products, including gasoline. This is because crude petroleum is mainly composed of hydrocarbon and other components, including organic and inorganic, that contain sulfur. Moreover, sulfur is crude petroleum’s third most common element after carbon and hydrogen. Crude petroleum with a high sulfur content requires more complicated processing and is expensive to refine. Hence, gasoline still contains sulfur.

Sulfur in fuel escalates metal corrosion in the engine, the fuel and the exhaust system. In addition, it increases vehicles’ sulfur oxide emissions. For these reasons, sulfur content in fuels, including gasoline, should be limited.

Before 2022, the Saudi Arabia national gasoline standard, SASO 1951 set the maximum sulfur content in gasoline at 1,