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  #1  
Old 06-10-2012, 11:33 PM
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Default 2003 5.7 hemi spark plugs

Ok guys, I have done some searching online and I read that hemis do not like platinum spark plugs, and they like copper. I am wanting to change my plugs and I went to 2 different auto places and both of them said that they won't take copper and came from the factory with iridium plugs or can take platinum. Please help. Thanks
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Old 06-11-2012, 10:11 AM
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nuts and they dont know what they're talking about..just go to counter and ask for NGK 5306's (coppers)
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Old 06-11-2012, 01:30 PM
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Thanks I ordered 16 NGK 5306's (coppers) from Rockauto. They were almost .50 cheaper per plug then local guys. The next time I go to one of those auto parts stores I plan to set them straight.
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Old 06-11-2012, 03:53 PM
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I think the 4.7's had platinum, but in my Hemi, I always run Champion's..standard plugs.
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