Courtesy, National Petroleum News Automatic Oxidation Apparatus fob Lubricating Oil MOST problems arising from the use of mineral oils in service are fundamentally related to oxidation of the oil. This is especially true for modern high-output engines where the demand on fuels and lubricants is becoming more critical. Fresh mineral oil consists essentially of hydrocarbons capable of furnishing satisfactory lubrication to moving parts. Under conditions of use, however, these hydrocarbons are converted to oxygenated products, properties of which we do not understand and the formation of which we can control only within limits. These products lead to lacquering, ring INDUSTRIAL AND ENGINEERING CHEMISTRY Vol. 34, No.

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