Automotive Dictionary: Crankcase Dilution

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Automotive Dictionary: Crankcase Dilution


Throughout this site we use many technical terms, and given the breadth of readership our site enjoys, sometimes we are remiss and incorrectly assume everyone knows what we are referring to. For those that do not, here are some explanations of the technical terms use.
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Crankcase Dilution


The presence of undesirable foreign matter in the crankcase, affecting the efficiency of the lubrication of an engine. Such elements include water, petrol, acids and carbon. Crankcase dilution is usually the result of an engine fault or an over-cool engine.
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