OEM NGK sparkplug question - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

s14 RL · 02-11-2003, 04:24 PM

I just received some sparkplugs from Courtesy...

NGK "PFR6G-11"...the FSM lists "PFR6C-11" as the correct (cold type) plug.

The guy at Courtesy said that NGK replaced the "C" plug with the "G" plug and that it's the right one. Can any of you verify this? I don't want to put in the wrong plugs...

edit:

did some more searching

so it seems like "C" is special ground electrode and "G" is racing use...

still doesn't tell me if it's ok to use on my car tho, so any help is appreciated.

02-11-2003, 04:24 PM	#1
s14 RL Leaky Injector Join Date: Oct 2002 Location: OC Posts: 66 Trader Rating: (0) Feedback Score: 0 reviews	OEM NGK sparkplug question I just received some sparkplugs from Courtesy... NGK "PFR6G-11"...the FSM lists "PFR6C-11" as the correct (cold type) plug. The guy at Courtesy said that NGK replaced the "C" plug with the "G" plug and that it's the right one. Can any of you verify this? I don't want to put in the wrong plugs... edit: did some more searching so it seems like "C" is special ground electrode and "G" is racing use... still doesn't tell me if it's ok to use on my car tho, so any help is appreciated. Last edited by s14 RL; 02-11-2003 at 04:40 PM..