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TRUCKS, tanks, and engines are of no use to an army if they are delivered to the battlefield with parts broken or badly corroded. The problems involved in protecting these parts from corrosion during storage and shipment are discussed thoroughly by the authors, who also explain the best methods and materials to use in protecting different types of parts under the extremes of temperature, humidity, and corrosive atmosphere likely to be encountered.

A test was conducted on two cars to determine the effectiveness of a dip process for protection against corrosion. Improvements of the dip process were better cleaning of inside surfaces of enclosed structural members, solving the problem of solvent refluxing or vapor washdown, and replacement of fluid deadener on the top side of floor pans with a heavy coat of water reducible dip primer followed by a heavy coat of the body primer. Results of the test indicate that the process is successful.

For most automotive applications, liquid cooled engines are desired since liquids give more efficient heat transfer and maintain uniform metal temperatures. In modem day engines, 60% of heat of combustion must be dissipated either through the exhaust or cooling system. Water has been a component of almost all engine coolants despite its corrosiveness, tendency to expand upon freezing, and relatively high freezing point. Ethylene glycol, however, is a most efficient chemical additive to dispel these disadvantages. Design considerations, components, and the testing of an integrated cooling system for a passenger car engine are outlined in this paper.