Spark plugs can get confusing with the numbers and what will work with the 2010 Fusion 3.0.
The pic in the above post shows SP511 with the {CGSF22F ,SP518}.
SP511 is with the CGSF22F ,the F for Fine wire Platinum, while SP518 is with the CGSF22N, with the N being for Nickel I assume.
The dealer recommended SP518A which is CGSF22NA1, which I think is a basic plug.
I prefer to get the best Motorcraft plug which is applicable with my engine.
Some sites say the SP511 replaces CGSF22N ,SP518
Is the SP511 the best Motorcraft plug for the 3.0 ?
C = Thread Diameter = 14 mm
G = Reach = .708" or 18mm Conical Seat
S = Plug Characteristic = Suppressor (Carbon)
F = Plug Characteristic = Conical Seat
2 = Heat Range = Cold (Stock)
2 = Tip Configuration = Extended (Power) Tip
F = Plug Characteristic = Fine wire Platinum Electrode