Sludge is to machinery what LDL cholesterol is to the human body (not good). Sludge is basically the formation of heavy, thick, greasy, tarry deposits that tend to collect in certain areas. It can be dark or clear, hard or gummy, minimal or pervasive. Some of the causes are: Additive and/or base oil incompatibilitiesElectrical sparkingOverheatingLengthy…
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What causes sludge in machinery?
