Why isn't there any research?
Posted in the Indianapolis Forum
#1 Jun 1, 2014
Look at the time frame?
Gasoline, when used in high-compression internal combustion engines, tends to autoignite (detonate) causing damaging "engine knocking" (also called "pinging" or "pinking") noise. To address this problem, tetraethyllead (TEL) was widely adopted as an additive for gasoline in the 1920s. With the discovery of the extent of environmental and health damage caused by the lead, however, and the incompatibility of lead with catalytic converters, leaded gasoline was phased out beginning in 1973. By 1995, leaded fuel accounted for only 0.6% of total gasoline sales and less than 2000 short tons (1814 t) of lead per year in the USA. From 1 January 1996, the U.S. Clean Air Act banned the sale of leaded fuel for use in on-road vehicles in the USA. The use of TEL also necessitated other additives, such as dibromoethane.
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