Page 8 - Fuels & Lubes International Q2 2013

AU T OMO T I V E C O L UMN 汽车专栏
下一代的通用汽车dexos™，
PC-11和GF-6
作者：Rakesh Dogra
近期在孟买举办的第十九届亚洲燃料油和润滑油年会上，SAE亚洲指导委
员会会议上发表了三项重要的标准更新，分别是通用汽车（GM）的dexos规
格、PC-11和ILSAC GF-6。会议由委员会主席，常驻新加坡的路博润东南亚有
限公司的Paul Nai主持。以下为此最新进展的有关信息。
通用汽车的下一代dexos™
按通用汽车（GM）燃料油和润滑油部门发动机油小组主管Angela Willis
所说，下一代GM的dexos™规格将提高燃油经济性及燃油经济性的可保持性
的门槛，这是通用汽车的重中之重。
“企业平均燃油经济性（CAFE）标准正越来越严格，因此整车厂必须从动
力总成的角度采用创新的方法来满足这些新出台的CAFE标准。润滑油是我们
实现这些燃油经济性标准的关键，”她说。“我们还要不断降低排放。降低排放
和提高燃油经济性是相辅相乘的。”
dexos™项目原先的重点是“同时做到燃油经济性提高、发动机油的实际
改进以及确保我们在车上所使用的油品能保护催化剂。此外，我们希望确保油
品符合相关规定，并与我们通用汽车的油品生命系统保持一致；这使我们有机
会可以采用GM汽车上发动机油生命系统来延长换油期。最后，通过教育和推
广，协助降低通用发动机油的使用，以减少可能出现的质保方面的索赔。”
GM的目标是到2015年中期实施下一代dexos™。“从时间上看这有点
紧，”她说，“但是，我们认为我们可能达到这个时间要求，并推出成功的产
品。”GM目前正在开发新的针对dexos™的火花塞汽油机测试，以及用于小排
量柴油机的dexos2™。
新的测试中包括一种燃油经济性测试。“我们认为Sequence VIE还不
够，”Willis 说。她补充到，GM目前正在开发一个可用于dexos1™和dexos2™
的通用的燃油经济性测试。“到夏季时，我们将更清楚新的程序是什么样子。”
开发中的其他测试还包括氧化性测试，用于替代Sequence IIIG；用于V8
发动机的通气测试；涡轮沉积测试，这是基于“当我们在开发一个动力总成时”
AT THE 19TH ANNUAL FUELS & LUBES ASIA CoNFERENCE
held in Bangkok recently, updates on three important standards, namely
GM’s dexosTM specification, PC-11 and ILSAC GF-6 were presented during
the SAE Asian Steering Committee Colloquia. The meeting was chaired
by Committee Chairman Paul Nai, regional business manager of Lubrizol
Southeast Asia Pte Ltd., in Singapore. The subsequent sections provide
information about these latest developments.
GM’s next-Generation dexos™
According to Angela Willis, engine oil group supervisor for the fuels
and lubricants department of General Motors (GM), the next-generation
of GM’s dexos™ specification will raise the bar in terms of fuel economy,
which along with fuel economy retention, is GM’s number one priority,
she said.
“Corporate Average Fuel Economy (CAFE) standards are becoming
more and more strict, so oEMs have to get very creative from a
powertrain standpoint to meet those new CAFE standards that are
coming out. Lubricants are going to be key in order for us to achieve those
fuel economy standards,” she said. “We also need to continue reducing
emissions. Reducing emissions and improving fuel economy go hand-in-
hand.”
The original focus of the dexos™ program was “to align ourselves
with fuel economy improvements, engine oil robustness improvements,
as well as ensuring that the oils we were putting into the vehicles were
catalyst protected. In addition to that, we wanted to make sure that the
oils were compliant and were in line with the calibration within our GM
oil life system; that gave us an opportunity to optimize oil drain interval
GM dexos™,
PC-11 and GF-6
Generation
next-
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