Abstract: The successive formulations and revisions for SINOPEC group diesel anti-wear additive standards were introduced. The revised standards were divided into two different categories of fatty acid type and fatty acid ester type. Cloud point and saturated fatty acid content are two crucial items in fatty acid type lubricity additive and must be maintained below -8℃and 2.5% respectively. Saturated fatty acid content and metal element content are two important items in fatty acid ester type lubricity additive. They are limited not to exceed 2.5% and 50μg/g, respectively. The specification played an important role in controlling the quality of diesel fuel lubricity additives.

Key words: diesel fuel, lubricity, anti-wear additive, standard, revision