Test method for measurement of the effects of automotive engine oils on the fuel economy of passenger cars and light - duty trucks in the sequence via spark ignition engine 测定乘用车和轻型卡车火花点燃式发动节油效果的方法
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Standard test method for automotive engine oils on the fuel economy of passenger cars and light - duty trucks in the sequence via spark ignition engine 在系列via火花点火发动机客车和轻型卡车的燃料经济学中汽车发动机油的标准试验方法