Rkammer
07-31-2005, 08:34 AM
I've read many of the previous threads on plugs and seems there are varied opinions on which plugs to use. I've decided to use Motorcraft plugs which are one heat range colder than came on my 2003 MM from the factory. What is the precise part number for this Motorcraft plug and the best place to get them at a good price? Thanks. :)