If gasoline and petrol are the same, where does LPG (Liquid Petroleum Gas) come into It and how can it be a liquid and a gas?
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In the early days of motoring there were some confusion about what the fuel was called. It was sold under various different names including gasoline, petrol and benzine. These then became common names. The “gas” in gasoline does not come from gas but started out as the trademark Cazeline from John Cassell. Counterfit Cazeline was sold under the trademark Gazeline and then in North America was simplified to Gasoline.
Petrol is short for Petrolium which literally means “rock oil”. This shorter term was first used for refined petrolium used as solvants but this was the right composition to use in combustion engines. The term benzine comes from the chemical benzene which is also a petrochemical solvant. There are small amounts of benzene in the fuel as a byproduct of the refining process which might have inspired the term, or it might have been confused with each other as petrol and benzene would be used interchangably as solvants.
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