机油黑并不表示润滑性降低.ATF有清洁功能,但不宜经常这样做.我只换fuel filter时用它清晰柴油管道

来源: 老生长谈于 2015-04-09 11:47:57 [旧帖] [给我悄悄话] 本文已被阅读：次

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