机油CD好还是CH好

2025-03-16 22:49:38
推荐回答(2个)
回答1:

CH机油好。区别如下:

1、等级不同

柴油发动机机油首字母是“C”,等级分别为CA、CB、CC、CD、CE、CF、CF-4、CG-4、CH-4、CI-4 、CJ-4。那么,每递增一个字母,机油质量级别就越高,换句话来说就是CH级别比CF更高。

2、性能不同

机油质量级别每递增一个字母,所拥有的性能都会优于前一种。不管是油品的稳定性(清净分散性)还是对发动机内部的保护性能(抗腐蚀性和和抗氧化性),CI级别的机油都更胜一筹。

3、适用范围不同

CF-4级柴油机油——适用于高速、重负荷、长周期运行的柴油机;

CH-4级柴油机油——适用于双金属活塞发动机(具有较强的耐抗性)。

回答2:

柴油发动机机油“cf和ch”是从质量进行的分类。柴油机油分为ca、cb、cc、cd、ce、cf-4、ch-4、ci-4、cg-4等质量等级(其中ca、cb级别目前在我国已被淘汰),不同的质量等级中,排序越靠后的质量等级越高,主要是抗氧化性、清净分散性和抗腐蚀性好。
ch-4是门为高转速涡轮增压柴油机设计的,有清洁分散能力,可以避免机滤堵塞,还能降低机油和燃油消耗。cf-4能控制发动机油泥和高温沉积物对发动机的磨损。

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