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Well, this is a great question because I usually have the same guy do all my minor work, as well as maintenance. I could swear my plugs have been on my 95 for YEARS now, but he always just says the same thing- that they look fine. Not being really auto-savvy, I'm not sure whether having them on there for 2 years+ is good or not. The plug wires haven't been changed, or probably even looked at in longer than that.
JB
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