|Standards||ASTM D 7593|
In-use engine oils are often subject to some degree of fuel dilution during service and not pose an issue, although excessive fuel dilution can have a massive impact on performance, potentially leading to component wear and eventual crankcase.
Testing by Gas Chromatography provides a means of determining the level of fuel dilution in the engine’s lubricating oil, enabling the appropriate action to be taken.
Results are presented in terms of % content of fuel in the sample. Flash point and kinematic viscosity are also good conformational tests for this method.
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