Some articles on benzene:
... As a gasoline (petrol) additive, benzene increases the octane rating and reduces knocking ... As a consequence, gasoline often contained several percent benzene before the 1950s, when tetraethyl lead replaced it as the most widely used antiknock additive ... With the global phaseout of leaded gasoline, benzene has made a comeback as a gasoline additive in some nations ...
Famous quotes containing the word content:
“The root of the discontent in American women is that they are too well educated.... There will be no real content among American women unless they are made and kept more ignorant or unless they are given equal opportunity with men to use what they have been taught. And American men will not be really happy until their women are.”
—Pearl S. Buck (18921973)