Re: Platinum Plugs - Must change timing??
Hi there! New to the forums, but I figured my 2 cents might help. I just changed my plugs a week ago, went from regular Champion copper plugs to NGK Iridiums. I can't say if my mileage went up, but it idles a little smoother and seems to have a tad better pickup. 7 bucks a pop, but think it's worth it. I got them through Summit.
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