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Old 01-24-2001, 09:06 PM
hancheng hancheng is offline
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Join Date: May 1999
Location: Diamond Bar, CA
Posts: 73
If I remember well, my owner's manual (94 C280) says to replace spark plugs every 30k miles with REGULAR ones. Platinum plugs are NOT recommended. There are threads talking about the disadvantages of using platinum plugs. You should be able to find them by doing a "search".
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Harry (94 C280)
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