Petrol, is a widely used liquid fuel derived from petroleum. It is primarily composed of hydrocarbons and is clear or slightly yellowish in appearance with a distinctive odor. Petrol is crucial for internal combustion engines, especially in automobiles, and its quality is often measured by its octane rating. It is produced through the refining of crude oil, and its combustion in engines releases energy, carbon dioxide, and various pollutants.Petrol is stored and transported with safety precautions due to its flammability. It has a significant environmental impact due to its greenhouse gas emissions, driving efforts to develop cleaner alternatives and improve fuel efficiency. It is readily available at gas stations worldwide, with prices influenced by various factors, including crude oil costs and regional regulations.