The Q6000 Series Fuel Dilution Meter (FDM) operates in the laboratory or in the field to provide rapid, accurate measurements of fuel contamination in engine oil. Fuel dilution in lubrication oil can cause serious engine damage. In diesel engine crankcases, for example, contamination can be caused by excessive idling, defective injectors and loose connections. The Q6000 was designed with a sampling method that uses a “fang” design. The sampling occurs using a headspace system with repeatability of <+5% RSD up to 15% fuel content. The headspace vapor sampling approach also eliminates the need to heat fuel-laden samples and does not require the use of solvents.