FORD dealer says the NGK cold plugs from ZFG now means I need a long block in my 25!

SlowSTExploder · Sunday at 1:49 PM

I

I Switched from the ngks to the ford performance ones too, night and day difference in terms of performance, I used to get alot of KR with the NGK at partial throttle loads, with the ford performance ones the ecu is adding ignition timing literally every where.. idk what it is about the NGK ruthies but my 2022 ExSt did not like them

BuckStrickland · Sunday at 4:11 PM

I'm conufsed as to why now these "NGK Don't run well" guys are coming out of the woodwork when all the big tuners that literally tune these things on the daily suggest these plugs, and I've never seen them mention the FP ones.

SlowSTExploder · Tuesday at 9:34 PM

BuckStrickland said:

Manufacturing isn't perfect, your bound to get a bad batch of plugs and the unlucky few like me would end up with a bad set, its kinda like when some engines will throw a rod a few miles in from being new etc.

I went with the ford performance ones, because they were the same specs as the ruthies and oem plug as far as reach and threads go, the ford performance plugs are claimed to be 1 step colder over stock, they have been working great for me, they are also made by NGK, they just arent projected nearly as far as the Ruthies.

SugarMouth · 2026-08-19T20:05:16-0500

SlowSTExploder said:

Manufacturing isn't perfect, your bound to get a bad batch of plugs and the unlucky few like me would end up with a bad set, its kinda like when some engines will throw a rod a few miles in from being new etc.

I went with the ford performance ones, because they were the same specs as the ruthies and oem plug as far as reach and threads go, the ford performance plugs are claimed to be 1 step colder over stock, they have been working great for me, they are also made by NGK, they just arent projected nearly as far as the Ruthies.

What is the part number for the Ford Performance plugs?

SugarMouth · 2026-08-19T20:10:51-0500

It appears Goose recommends the NGK-95605 on "Explorer ST, Bronco/Ranger Raptor only". he says: "For F150/RAPTOR we recommend Ford Performance Plugs."

So it seems a difference between the 3.0 and the 3.5.

UNBROKEN · 2026-08-20T08:46:29-0500

SugarMouth said:

Like I said in post #40….the 95605 is the go-to for a tuned ST.

SugarMouth · 2026-08-20T08:52:23-0500

UNBROKEN said:

Agree and reconfirming.

The one thing I am scratching my head on is where @Brentry is suggesting the 95605 would be detrimental to a factory tuned 3.0. I can't wrap my head around that one.

Brentry · 2026-08-20T09:40:07-0500

Stock tune, 87 octane and projected tip doesn't mix well .

If you test a projected tip on the dyno (I have many times in a different life) it will require different ign timing. Does it make more power than a non projected tip. Possibly a little ,maybe no. All depends. In the end there usually very close to each other after TUNED.

Doesnt matter if it works well in a tuned application. Where talking a stock engine,that has detonation damage.

SlowSt is dead on right in his post.

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FORD dealer says the NGK cold plugs from ZFG now means I need a long block in my 25!

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