Spark plug question

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05-05-07, 02:13 AM

formosa927

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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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05-05-07, 06:09 PM

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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