If you will pardon the rather basic question here. Sorry to take you guys away from what your talking about here but..............

Could you tell me what the difference is between a C8TF and a C8TGF.
I didn't notice the difference before but my Nova Rossi 12-3 CT runs on the C?TGC(F) plugs.

I want to place an order to get more plugs and it's then I noticed?!

I hope you can help me.

Thanks in advance.

British Menace