Should we use Autolite or Champion spark plugs on our cars.
This subject is often debated. My personal preference based on my own experience is for the Autolite 85.
I used Champions for many years in my Imperials, but the crabby old guy at my favorite auto parts store told me that he was no longer selling Champions because their quality had dropped. And sure enough, my '71 Imperial started pinging noticeably after the next spark plug change. I then replaced the Champion plugs with Autolites, and no more pinging.
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