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Posted

At 30,000 I replaced my plugs with Champion Copper Plus instead of the platinum. I'll replace them more frequently, but I like the performance better with the copper plugs.

Posted

I changed my AC/Delco Platinium plugs at 100,000 and they looked new. I made the MISTAKE of using the Chumpion Copper plus Truck Plugs (big joke) after 15000 miles they started misfiring at 4700 rpm. I thought I would get off cheap buying them. Now I went back to the AC/Delco Platinium and the truck runs like new. I have no more misfires and the performance is back. I guess it goes to show youget what your pay for.

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