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Platinum Spark Plugs

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Old 11-02-2009, 07:51 PM
Speedster1962's Avatar
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Default Platinum Spark Plugs

I am going to use platinum spark plugs in my 5.7 litre hemi. Is this a good plug to use vs. the oem.
 
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Old 11-02-2009, 07:52 PM
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Thanks for the feedback
 
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Old 11-02-2009, 10:35 PM
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only use what it came with. champion copper plugs.
 
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Old 11-03-2009, 06:23 PM
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on the old 2.2/2.5 motors, i found that if I ran plugs other than champions, they would rough idle.. autolites were the worst for this. Bosch and NGK's were fine
 
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