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Speedster1962

11-02-2009 07:51 PM

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.

Speedster1962

11-02-2009 07:52 PM

Thanks for the feedback

CHRYSLER TECH

11-02-2009 10:35 PM

only use what it came with. champion copper plugs.

22chrysler

11-03-2009 06:23 PM

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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