How is sulphur dioxide made in car engine?

Sulfur dioxide (SO2) is produced in car engines primarily through the combustion of fossil fuels, such as gasoline or diesel, which contain small amounts of sulfur compounds. When these fuels are burned during the engine's operation, the sulfur present reacts with oxygen in the air to form sulfur dioxide. Additionally, the use of fuels with higher sulfur content can lead to increased emissions of SO2, contributing to air pollution and acid rain. Emission control technologies, such as catalytic converters, can help reduce the release of sulfur compounds.