A man performs a test on a motor to determine the amount of carbon formed by oil in Indiana, United States.
Indiana United States USA Date:1926 Duration:1 min 20 sec Sound:NO SOUND
A man determines the carbon forming tendency of oil in Indiana. This is done through actual tests on a motor. A man collects the carbon from the motor and weighs it. Test tubes on table contain different oils to determine which oil forms what amount of carbon. Test tubes of oil number 1, 2, 3 and 4 on the table and the amount of carbon formed by them.
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