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HOT-ENGINE SLUDGE and ITS CONTROL
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English
Abstract
SLUDGE is a slushy mass composed of oil thickened with the oxidation and decomposition products of the oil and fuel. In hot-engine sludge the oxidation products of the oil are the principal cause of trouble.
The steps in the development of sludge control have been:
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1.
Development of more highly refined oils from which the easily oxidizable sludge-forming material has been removed.
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2.
Addition of either oxidation inhibitors or detergents, separately.
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3.
Addition of both oxidation inhibitors and detergents together in the same oil.
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