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Fuel Dilution %

Definition:

Fuel Dilution % is the amount of raw, unburned fuel that ends up in the crankcase. It lowers an oil's viscosity and flash point - creating friction-related wear almost immediately by reducing film strength.

Standard Test Method Used:

Fuel Dilution by Gas Chromatography - ASTM Method Pending

Reporting Measurement:

% by Volume

Amount of Sample Needed:

40 mL

Fuel Dilution Diagram

Gas Chromatography is a method for separating the components of a mixture and measuring the amounts of each. Components are separated from one another by vaporizing the sample into a carrier gas stream that is passed through a column containing a substance that selectively adsorbs then releases the components to be measured.


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