its an old myth and i was told by a mechanics

来源: Kaolin007 2009-09-14 11:03:14 [] [旧帖] [给我悄悄话] 本文已被阅读: 次 (212 bytes)
switching back and forth will do harm to the seals and gaskets for the engine.

IMO, synthetic are way overated (unless the manufacturer specified the sysnthetic). Not worth the money to put synthetic in.

所有跟帖: 

Syn oil is prone to causing engine leak -internuts- 给 internuts 发送悄悄话 internuts 的博客首页 (272 bytes) () 09/14/2009 postreply 11:55:48

true -Kaolin007- 给 Kaolin007 发送悄悄话 (0 bytes) () 09/14/2009 postreply 13:13:35

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