Spark plug gap - Alfa 145 - Red Baron
My spark plugs need changing. I need eight!! in the 1.6 TS engine.

One set of four is NGK PMR7A. Thats fine.
The other four can be either NGK PFR6B or NGK BKR6EKPA. The PFR6B have an electrode gap of 0.7mm, but the others have either 0.8 or 0.9mm gap depending on which info you believe.

How do I know which to take if gap distance varies?
Which would be better?
Spark plug gap - Alfa 145 - athame
how tight a fit is the feeler gauge? 0.1 is less than the wear from new to old guages! happy plugchanging