Originally Posted by
alloro
There's only one OEM plug to choose from for your engine, model, and year, you don't get another choice since OEM is a choice. The spark plug part number is listed in your owner's manual.
Aren't there two brands that Ford uses as OEM supplier on their vehicles?
Motocraft & Autolite?
(If I remember correctly.)
Would the original replacement plugs be considered the absolute best plugs to use?