A trade name for the spirit consisting of a mixture of volatile fractions of the paraffin, napthene and aromatic series of hydrocarbons used in internal-combustion engines.
Found on http://www.aeroplanemonthly.com/glossary/
Mixture of hydrocarbons derived from petroleum, mainly used as a fuel for internal-combustion engines. It is colourless and highly volatile. Leaded petrol contains antiknock (a mixture of tetra ethyl lead and dibromoethane), which improves the combustion of petrol and the performance of a car engine. The lead from the exhaust fumes enters the a... Found on http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0027077.html