Few automotive products are subject to more 'buzz' than sparkplugs. Motor oil comes to mind. Tough to differentiate any product that has become a commodity. Would anyone pay $7 per plug without that slick marketing campaign? Anything that can be mass-marketed to the lightweight DIYer is going to come loaded with expensive dis-information. Look at the (snake) oil additive industry!
Besides, I am somewhat inclined to believe any insight from Albert Champion.
Thanks AC.
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1986 300E 5-Speed 240k mi.
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