Iridium Spark Plugs Question
07-15-2013, 10:17 PM
#1
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Location: Placerville, CA
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Year: 1989
Model: Cherokee
Engine: 4.0 Inline 6
Iridium Spark Plugs Question
So pulled the old plugs from the jeep and theyre Champion Iridium plugs. I use oem copper core plugs....are the iridium plugs too hot? never used them before, just curious.
07-15-2013, 10:58 PM
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Year: 1989
Model: Cherokee
Engine: 4.0 Inline 6
Yeah, Ive never seen iridium plugs before (I live under a rock) been doing some reading and iridiums tend to overheat from what ive been reading...ive always used oem coppers.
07-16-2013, 04:42 AM
#6
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They're just longer lasting for extended service intervals - not something you're going to need on a Jeep 
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