Spark Plugs 1993 TWIn Turbo 53k Z32
 

So ive heard NGk spark plugs are the only way to go, but what exactly is the number plug I want? PFR6B-11C? Where do I find these special plugs? How often should I change my MOBIL one oil if I let my car sit in the winter and drive only so much in the summer?

Search is your friend.

The plugs you want are the PFR6B-11B

www.courtesyparts.com ($68.16)
www.importpartspro.com ($64)

Z1motorsports, ConceptZperformance & many other websites sell them.

Spark Plugs
 

can the PFR6B spark plugs work also on none turbo?