It is a flammable liquid that is recovered by drilling through the earth's surface. It is a fossil fuel that can be used to make various products such as plastics, asphalts and some pharmesuticals.

Because petrol evaporates, even at room temperature, and because it is so flammable, it is suitable for use as a fuel for automotive vehicles.

The difference between petrol and diesel engines is that a petrol engine uses a spark to ignite the air/fuel mixture, whereas a diesel engine relies on hot compressed air to ignite the air/fuel mixture.

Petrol can be used to run very large or very small engines. It can also run two-stroke engines, but you must add lubricating oil to the petrol.

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