Are Motorcraft And Autolite The Same?

Are Motorcraft And Autolite The Same?? What spark plugs are made in the United States? ACDelco Professional PLATINUM Spark Plug (Pack of 8) Made in USA. Do Iridium spark plugs make a difference? Iridium is said to be six times harder and eight times stronger than platinum with a 700° higher melting point. Iridium spark … Continue reading Are Motorcraft And Autolite The Same?