When The Customer Says 'Knock'

Year Published: 1954

Creator: E I DuPont De Nemours And Co Applied Technology Division

Format: 16mm

Sound: sound

Description: Presents scenes of typical motorists driving under normal, everyday driving conditions. Explains that these conditions and their knock-producing effects are reproduced for closer investigation in the laboratory on Du Pont's modern chassis dynamometer. Shows that there are many factors other than gasoline quality which produce engine knock.


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