Originally Posted by 06 So Comfort
My take on this is, they make Motorcraft plugs for Ford.
That sums it up alright -
Yea , Honeywell makes both Autolites and Motorcraft plugs. Motorcraft plugs are maunfactured to FORD's strick specifications. Autolites are not.. I tried Autolites once, they lasted 40 miles, I wrote them a letter and they basically said what I have above.
I tried Bosch as well - The truck didn't make it out of the shop.
You don't have to learn the hard way - I already did that, many moons ago
This may help as well -
Don't foget the dielectric grease - very important!!