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General Motors’ research men in Dayton found that tetraethyl lead stopped engine knock.

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9 Dec 1921

Finding tetraethyl lead’s anti-knock effect, 1921. General Motors’ research men in Dayton found that tetraethyl lead stopped engine knock.

Finding tetraethyl lead’s anti-knock effect, 1921 involved Thomas Midgley Jr., Charles F. Kettering and General Motors.

Finding tetraethyl lead’s anti-knock effect, 1921, located in Dayton, Ohio.

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