Originally posted by DemonSVT:
Originally posted by mcgainer:
though the AGSF32pp is the original and recommended by this site. I however recommend NGKs...
Incorrect!
AWSF32PP or Autolite APP764 are recommended by this site. (AWSF32PP or AWSF32F are original depending on year - another Ford decontenting IMO! 
)
AGSF style plugs have a slightly longer end that sticks into the chamber a bit more. They dealership will try to sell you these for any Duratec even though they have only superceded the 3L Duratec (all years) and are stock in 01 & newer 2.5L Duratecs.
While I will gladly state NGK makes excellent plugs they sadly do not make any double platinum plugs for the Duratec. Expect to change them 2 maybe 3 times as often as the listed double platinum plugs. More often yet if you are chipped!
Ouch!! My hand is still stinging from that one!!!
I stand corrected....but I did know that, cause we all participated in a plug discussion about 6 weeks ago?
I'm running NGK single plats...and love'em. The AWSF-32pp caused my car to stumble (as has been beaten to death already) and simply changing to the NGKs cured this.
