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Spark plug question

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Old May 5, 2007 | 02:13 AM
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formosa927's Avatar
formosa927
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Default Spark plug question
When do i suppose to replace my spark plugs? the oem plugs were platinum or iridium plugs?

thanks

my car is 2002 with 60k miles.
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Old May 5, 2007 | 06:09 PM
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Carbon~IS's Avatar
Carbon~IS
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IS300 uses both platinum and iridium.

OEM Denso Iridium Spark plugs are good till 90K miles. and the platinums are good til 60k miles.

How to tell which one you have without pulling them out:
http://my.is/forums/f88/how-tell-if-...w-pics-260416/
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