Colder Spark Plug for Tuned Rangers

[Superdannyboy]

Yes, I run the Ruthenium plugs. I probably have about 40K on them. They are a good plug but I would not install them unless you are running a tune in your Ranger....just my opinion.

Thanks, I ordered them yesterday for rockauto.
I am running a 5 star tune and in the process of installing my downpipe. I've got the 3 bolts loose on the flange it's actually the flex pipe bolt that I haven't broken loose.
I read a lot on other Ecoboost forums like for the fiesta and mustang and it seemed like most of them ran a colder plug.

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[importfighter01]

Anyone running the NGK 95605 one step colder ruthenium plugs??

i am too with Ford Performance tune. 5k with them. No issues. Great plug.