Which Spark Plugs
#2
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How often do you want to change them? If often is no big deal I like copper tips, gapped anywhere from 40-50.....but for a driver id take the OEM equivalent platinum tip. They are pregapped and should last 100k.
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A copper tipped plug was never right for any Gen2,3,4,5 engine sorry. OEM has been speccing iridium and platinum tipped plugs for decades. Why we've adopted the old habit of wanting copper tips I haven't figured out yet. I'm running OEM equivalent AC delco in my DD 6.0 Yukon, my previous STS, the old ladys SUV etc. I only run copper on the camaro and I don't have a ******* clue why!