The present invention relates to diesel fuel compositions comprising a performance enhancing additive, wherein the additive is the product of a Mannich reaction between:
(a) an aldehyde;
(b) a polyamine; and
(c) an optionally substituted phenol;
wherein the or each substituent of component (c) has an average molecular weight of less than 400.
本发明涉及包含性能增强添加剂的柴油组合物,其中添加剂是下列物质之间曼尼希反应的产物:
(a) 醛
(b)
多胺
(c) 任选取代的
苯酚;
其中组分(c)或每个取代基的平均分子量小于 400。