Difference between two Motorcraft spark plugs?
Junior Member
Joined: Dec 2008
Posts: 3
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I'm about ready to swap the plugs in my truck, and have found these two Motorcraft part numbers for my truck. One is available at Autozone and the other at O'Reillys.
AGSF-34EE (Autozone - This plug called for in manual)
AGSF-34FM (O'Reilly)
Which of the two is a better plug? Does it matter? From what I've searched and read, I think EE = "Double Platinum" and the FM = "Platinum Finewire and Nickel Plated Shell"
Also does anyone know if the plugs are pre-gapped?
Thanks!
AGSF-34EE (Autozone - This plug called for in manual)
AGSF-34FM (O'Reilly)
Which of the two is a better plug? Does it matter? From what I've searched and read, I think EE = "Double Platinum" and the FM = "Platinum Finewire and Nickel Plated Shell"
Also does anyone know if the plugs are pre-gapped?
Thanks!
They are not gapped for my vehicle. I just replaced my pluggs and had to gap them as they came with to narrow a gap.
Junior Member
Joined: Dec 2008
Posts: 3
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i aint gonna take any chances, its OEM for me
Senior Member
Joined: Sep 2007
Posts: 3,688
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From: The Barbary Coast
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