Originally posted by zm830101:
Stick with the original motorcrafts. I switched to the autolites and they suck!! I had two plugs arc and kill themselves in less than 2000 miles. Plus, the motorcrafts are a fine wire electrode where as the app764's are not. Perhaps I just had a bad experience with the autolites but the choice is yours.



Actually, Autolite manufactures Motorcraft spark plugs ...

APP764 will do the trick, or APP104 is equivalent if your local store doesn't have the 764's for you. Both work fine - don't be scared by the extra threads on the 104.

Granted, the Autolite branded plugs aren't fine wire, but make sure if you do buy Motorcraft that you get a DOUBLE PLATINUM plug ... I was using a fine wire single plat Motorcraft at first in the 3L (AWSFxxFS), before I knew any better ... single plat is NO GOOD. You'll be able to see the platinum button on the ground electrode if it is double plat.