We went though this issue a year or so ago. Ceg'ers have found the Motorcraft AGSF 32PPM. Double plats. My dealer parts man told me (had to get my maintenace log out) Ford was cutting back on the amount of different plugs. ( May / 2002) If you go to any parts store ei Autozone they still show the "fine wire"?
My car had no noticeable driving problems, however the scan tool was showing misfires, not bad enough to light the CEL. I tried Bosch single plats, good for a few thousnand miles. Misfires came back, so I went with AGSF 32 PPM's my trip mileage went up 2-3 mpg and the scan tool has yet to record a misfire since.
Paul




Paul 98 Mystique LS 2ea (07/97)(08/98)