Gasoline or petrol is a petrochemical product, a transparent, yellowish and flammable liquid normally used as a fuel for spark-ignited internal combustion engines. It is chemically composed of organic
Tetraethyllead, abbreviated TEL, is an organolead compound with the formula Pb4. It was widely used as a fuel additive for much of the 20th century, first being mixed with gasoline beginning in the 19
Gasoline
…premature ignition (which causes knocking and reduces efficiency in reciprocating engines) is measured by its octane rating or performance number. Tetraethyl lead was once widely used to increase the octane rating but is not used in modern automotive gasoline due to the health hazard. Aviation, off-road motor…
Sign on an antique gasoline pump advertising tetraethyllead by the Ethyl Corporation