Petrol-paraffin engine

Dual-fuel Internal Combustion Engine

A petrol-paraffin engine, TVO engine or gasoline-kerosene engine is an old-fashioned type of dual-fuel internal combustion engine with spark-ignition, designed to start on petrol (gasoline) and then to switch to run on paraffin (kerosene) once the engine is warm. The grade of paraffin used is known as tractor vaporising oil in the UK.

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