Originally posted by Art Hazebrook:
Stick with Motorcraft ASWF32-PP or the Autolite double platinum analog.
If you opt for Motorcrafts, DO NOT let the dealership try and tell you that AGSF32 is the suggested replacement. This plug extends into the combustion chamber approx. 5/8" beyond the ASWF plug resulting in stumbling at high rpm's (personal experience).
Art
A freind of mine is a servise advisor at a Ford dealership. I asked him if he could get me some parts including the AWSF32PP spark plugs. I told him the stock ones were crap because they were only single plat. He sent me back an e-mail saying that the plugs I need are AGSF32FM. I told him that the owners manual says to use AWSF32 and that the dual plat equivalent is AWSF32PP. He tells me that the owners manual may be incorrect because they are sometimes printed in advance and they may have changed the plugs after the printing of the manual.
I just asked him to get the plugs I want but he says that their computers are constantly updated and that his part number is correct. He asked for my VIN # and will contact Ford to find out what plugs are correct . I wonder why some dealers have one part number and some have another. It will be interesting to see what he finds out.
