Focus ST 250 Spark Plugs

Focus ST 250 Spark Plugs

Author
Discussion

bigfish786

Original Poster:

77 posts

148 months

Sunday 4th December 2016
quotequote all
Ok, just want to know what the best option is for replacing the plugs.
Ngk
Denso
I have bluefin remap so wondered if the colder plugs would be worth getting?
Any info would be great.
Cheers.

bigfish786

Original Poster:

77 posts

148 months

Friday 16th December 2016
quotequote all
I opted for the ngk plugs, I'll be fitting them tomorrow.
I was a little unsure as to what state of tune I would have to be at before a colder plug became necessary?


bigfish786

Original Poster:

77 posts

148 months

Saturday 17th December 2016
quotequote all
Fitted the plugs this morning, the old plugs looked ok, one had a little ceramic build up on it, and all were gapped slightly smaller than the NGKs. But the car is running very smoothly. I will check them periodically,