但是没有石蜡(Paraffinic Moleculars)的合成机油在零下40摄氏度还流动,有石蜡的天然机油就算加了添加剂,一过零下20摄氏度就不灵了。因为石蜡比油早出问题。
但是没有石蜡(Paraffinic Moleculars)的合成机油在零下40摄氏度还流动,有石蜡的天然机油就算加了添加剂,一过零下20摄氏度就不灵了。因为石蜡比油早出问题。
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