我觉得其实不光是省多少钱的问题，油耗低了，排污就少了－美国用的是清洁柴油，排污标准比欧洲的严格很多

来源: jz13283 于 2015-08-19 12:35:29 [旧帖] [给我悄悄话] 本文已被阅读：次

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