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What About Spark Plugs???
I'm looking for some information(and I think other people would be helped also) on spark plugs. I've heard conflicting information on different types of plugs.
A couple of people have recommended going to cooper plugs from platinum. Why? They say the cooper plugs will give a smoother idle. They also say platinum plugs only real advantage is longevity of the spark plug.
What's the truth? Anybody know?
What's best? Cooper? Platinum? Iridium?