My first post so forgive me if its dumb

I've done a search on plugs and found a difference in advice about which plugs to use with a UK MY96 Impreza Turbo.

My car is using these NGK PFR6G's at the moment, should I replace with the same plugs. I'm not sure what heat these plugs are either. Any help gratefully received.

 

As far as I'm aware you should stick to these plugs unless you have done a lot of modifications to the car. I've just bought some for my 93 WRX

 

thanks for the answer, I'll stick to the 6G's then.

This place gets results fast!

 

B not G. NGK PFR6B.

 

Uh oh mine has PFR6G's in it at the moment- I messed around for an hour extracting one of them!

I looked at the sidc FAQ's and found this:


Electrical
Battery 55D23L-MF, 12V/48AH
Alternator 12V/75AH
Spark plugs NGK PFR6G/PFR6B
Spark plug gap 1.0 to 1.1mm


I noticed everyone here was using the B's and wondered if they were better? I also started wondering why mine was running on G's and what the difference between the two was.

Its one mystery I'm never going to get the answer too unless someone here knows.

 

plug gap is best at 0.7

 

Oh err. Maybe they changed them. I never heard of the "G" The 1.0 to 1.1 plug gap is also very wide, most get best results at about 0.7.

 

Sorry, didn't notice the G bit. Mine are B's and have been told to set them at 0.7mm as well