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Fuel Dilution

ASTM method - D92

Measures amount of fuel (%) present in an engine oil.


Operating Principle. The instrument samples the headspace above a sample for fuel vapors. A pump inside of the test equipment draws the vapors across a sensor where absorbed hydrocarbons are measured in percent fuel present.

Significance. Fuel dilution in engine oils is measured by this process and returns a value in percent fuel dilution. Excessive fuel dilution can cause a drastic drop in viscosity which may lead to increased wear.

Application. Diesel and Gasoline Engines.

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Insight Services, Inc.  •  20338 Progress Drive  •  Strongsville, OH 44149  •  Phone: 216-251-2510  •  Fax: 216-251-2515
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