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DCA4是一种化学添加剂,可以有效地防止冷却系统生锈。在康明斯发动机及其他大多数进口发动机的冷却液中均要求含有一定量的DCA4,以防止发动机缸套受到侵蚀,延长其使用寿命。
DCA4 is a chemical additive that effectively prevents the cooling system from rusting. In the Cummins engine and most of the imported engine coolant are required to contain a certain amount of DCA4 to prevent erosion of the engine cylinder liner to extend its service life.