I really don't pay attention to the friction code but I do recall it being discussed here and I happened to go look at mine. I want to say they were "F" something.
I have raybestos element3 fromt pads and rotors. Had them for 5000kms, so far so good.
I had centric premium(not coated) and stop tech pads on my subaru for 3 years. Car had to sit in the garage last year and the pads rusted on the rotor.
