Ethyl gasoline definition
gasoline to which ethyl fluid (tetraethyl lead , ethylene dibromide, ethylene dichloride, or another octane improver) has been added to improve the gasoline's resistance to knocking . It slows down the burning rate thereby creating a smooth pressure curve that will allow the gasoline to be used in high compression engines. It is a generic term describing premium or high-octane fuel. It was first sold in 1924