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1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Platinum the same as Iridium?

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Old Jul 7, 2006 | 07:59 PM
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willwren
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Copper and Irridium are fine for L67'*. Platinums are not.
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Old Jul 8, 2006 | 12:00 AM
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While Iridiiums receive my highest recommendation for what I did with them in my truck..

Running them a 100K miles w/o regapping does show a gap difference..however.. they still worked great.
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