Ive just done a service on the fiesta I bought recently.
When i took the Bosch plugs out the electrodes were really worn down and as a result the had an almost 3mm gap.

I bought some NGKs over the counter at a Bullseye place, they only had one set in stock for the zetec, i didnt look specifically what model they were.


But, first, does anyone know the correct plug gap for a mk5 Zetec S 1.6

and secondly, does anyone think there is a noticeable difference running the different plugs? Upon further insight there are Champions, NGKs, Bosch and countless other brands.
I wondered if any are junk and if some are lots better.
Please discuss.

Cheers Matt.