通用汽车公司轻型车发动机油规格介绍及其影响分析

The Introduction and Effect Analysis of GM Light-Duty Vehicle Lubricant Specification

文章介绍了通用汽车公司于2009年推出的轻型车服务油规格——Dexos。该规格包括Dexos 1和Dexos 2,其中Dexos 1用于除欧洲外的全球2011年款汽油轿车,Dexos 2专为欧洲轿车发动机设计,在欧洲用于2010年款各种轿车。Dexos规格的理化指标和台架试验分别来源于美国最新的API/ILSAC GF-5规格的试验和指标、欧洲ACEA C3-2007试验和指标及通用的内部发动机试验。文章分别将Dexos 1与API/ILSAC GF-5规格、Dexos 2与ACEA C类油规格进行了比较,并指出了这些规格在指标及性能上的差异。分析了Dexos 1规格的成本以及Dexos 1规格的推出对API油品规格的影响。

Dexos is introduced in this paper.It is the lubricant specification for light-duty vehicle engine service fills,includes Dexos 1 and Dexos 2,and was developed by General Motors Corporation in 2009.Dexos 1 has been applied on gasoline engine car produced after 2011 on a global scale except Europe,while Dexos 2 on both gasoline car and diesel car produced since 2010 in Europe.The Physical and chemical indexes and engine tests of Dexos come from the latest API/ILSAC GF-5 in America,ACEA C3-2007 in Europe,and GM＇ s own engine tests.By comparing performance indexes of Dexos 1 and API/ILSAC GF-5,Dexos 2 and ACEA C,the differences among them have been found in this paper.And the cost and effect of Dexos 1 on API lubricant specifications have also been analyzed.