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Opinions on spark plugs
I am getting ready to put plugs in my truck and I have always put standard Bosch platinum plugs. I now see iridium and platinum +2,+4 etc. Does anyone have experience/opinions about these plugs. Any headsup when chaning plugs in a 4.7L Login to read more. 
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| Engine | 4.7 L |
| Trans | 5-speed Automatic (Electronic) |
Vehicle Data
2005 Dodge Ram 1500 ST 4.7L
| Engine | 4.7 L |
| Trans | 5-speed Automatic (Electronic) |
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