95% Boiling Point

Fuel can be burned in an engine only after it has been completely vaporized. The temperature at which the fuel is completely vaporized is described as the “End Point Temperature” in Distillation Test Method, ASTM D 86. Since this temperature is difficult to measure with good repeatability, the fuel's 90% or 95% distillation point is often used. Detroit™ specifies the 95% temperature because it is closer to the end point than the 90% used in ASTM D 975.