Lubricity
The term lubricity is often defined as the ability of a lubricant—in this case diesel fuel—to minimize friction between and damage to surfaces in relative motion under load. Generally, the tests used to evaluate diesel fuel lubricity try to create conditions of boundary lubrication. More specifically, test results that quantify a fuel’s lubricity are a measure of the fuel’s ability to minimize friction between and/or damage to surfaces in relative motion under boundary lubrication conditions.
All Danish diesel samples fulfill the Danish DS EN 590 lubricity limit of max 460 µm. Biodiesel blending improves lubricity as well.
Lubricity in the sampled diesel in Denmark
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Source: SGS INSPIRE based on SGS WWFS, 2020