spark plugs on an 04 ls430

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02-06-08, 02:20 PM

japoneez

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spark plugs on an 04 ls430

what's the service interval for spark plugs on an 04 ls430?

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02-06-08, 04:43 PM

GSteg

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the OEM denso Iridium plus are suppose to last about 120k miles according to Denso. Althought it'll last that long, performance will deteriorate the close it gets to the 120k mark. I would change it at 90k miles anyways.

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02-07-08, 10:34 AM

RTIS250

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Most dealers include plugs with their 60k services. However, id agree with GSteg, and replace them at 90k, if you havent already at 60k.

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